Co-authored by Sonya Sargent and Anthony M. Strong

When a woman returns to the scene of the horrific mass murder that shattered her life, the nightmare begins again in a chilling novel of psychological suspense.

Five years ago, Tessa Chamberlain was the lone survivor of a beach house massacre that left three of her friends dead—and Tessa with an inescapable, unending dread. Now she’s going back to face her fears.

Renting the same beach house where she almost died, Tessa returns to lonely Cassadaga Island off the coast of Maine long after the tourists and summer residents have departed for the winter. But as the fog rolls in and the nights grow longer, she wonders if she made a terrible mistake. There are footsteps on the porch, creaks from the second floor, and an unsettling feeling of being watched.

If only someone believed her. Because the terrors Tessa thought were long behind her are starting again. And this time, trapped and alone, she might not be lucky enough to survive them.

PUBLISHER

Thomas & Mercer, April 2024

“A.M. Strong & Sonya Sargent’s THE LAST GIRL LEFT is a spine-tingling thriller that grips you from page one and doesn’t let go. Tessa Chamberlain may have survived a beach house massacre but five years later her nightmares–real and imagined–are about to get worse. A masterful thrill ride, this novel takes readers into the depths of darkness and back. A phenomenal and terrifying read.”
-Amazon bestselling author Elise Hart Kipness

Co-authored by Sonya Sargent and Anthony M. Strong

Sixteen years ago, her sister vanished while on a cross-country road trip…

FBI Special Agent Patterson Blake thinks the trauma of her sister Julie’s disappearance is a distant memory. But when she helps raid the lair of a vicious serial killer, her unresolved emotions come crashing back with dire consequences.

Finding herself sidelined, and in danger of losing the job she loves, Patterson fears for the future. Until she discovers new and disturbing details of her sister’s last days. Armed with a fresh sense of resolve, Patterson decides to follow in Julie’s footsteps and do the impossible. Unravel the mystery of what happened to her sister, and why.

But when she stumbles across a sadistic sociopath, a murderer who has been abducting girls for decades and leaving them to die a gruesome death, the young FBI agent will discover that the past is a dangerous place, and those who dwell within are still out there, waiting for new prey.

And in Patterson Blake, they might just have found it…

PUBLISHER

West Street Publishing, January 2022

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• West Street Publishing

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• German: West Street Publishing

Co-authored by Sonya Sargent and Anthony M. Strong

Patterson’s search continues in the gripping follow-up to Sister Where Are You.

Following the clues of her sister Julie’s disappearance to Dallas, newly reinstated FBI Special Agent Patterson Blake finds herself saddled with a rookie partner she feels can only get in her way. A cocky ex-cop who thinks he doesn’t need a babysitter. But that proves to be the least of her problems…

After discovering a witness who could hold the key to finding her sister, the case takes another dire turn. The woman goes missing before Patterson can meet with her.

Is there a connection to Julie’s case? Is someone trying to stop Patterson from uncovering the truth? There’s only one way to find out. She must locate the missing woman… and quickly… even though it means putting herself, and her new partner, in mortal danger.

PUBLISHER

West Street Publishing, March 2022

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• West Street Publishing

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• German: West Street Publishing

Co-authored by Sonya Sargent and Anthony M. Strong

Some monsters prowl in daylight…

FBI Special Agent Patterson Blake is armed with new information and ready to continue the search for her sister Julie, who disappeared sixteen years ago on a cross-country road trip.

But Dallas isn’t done with her yet.

A predator is on the loose, snatching girls off their bicycles as they ride home from school and carrying them away. When the girls start showing up dead, investigators realize they have something even worse on their hands. A depraved psychopath with an unknown agenda.

Ordered to stay in Dallas a while longer, Patterson and her rookie partner, Marcus Bauer, must find this burgeoning serial killer before he kills again.

PUBLISHER

West Street Publishing, September 2022

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• West Street Publishing

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• German: West Street Publishing

Co-authored by Sonya Sargent and Anthony M. Strong

Patterson Blake is in more danger than ever before…

Following the clues of her sister’s disappearance to Amarillo, FBI Special Agent Patterson Blake is hopeful she will finally learn the truth about Julie. But there’s a problem. The man who might hold those answers has been accused of a heinous crime. One he claims to be innocent of.

When Patterson starts to dig into the case, she stumbles upon a dangerous conspiracy that threatens to not only derail her search for Julie but could also get her killed.

With the clock ticking and her very life in danger, Patterson must unravel a plot bigger than any she has ever encountered, even as forces she cannot control close in around her with one aim… To stop her by any means necessary.

PUBLISHER

West Street Publishing, February 2023

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• West Street Publishing

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• German: West Street Publishing

Co-authored by Sonya Sargent and Anthony M. Strong

Patterson Blake follows her sister’s trail to Santa Fe.

After following her missing sister’s trail from Oklahoma City to Dallas, and then on to Amarillo, Patterson Blake finds herself in Santa Fe looking for a man who might hold the key to unraveling the mystery of Julie’s disappearance. But instead, she uncovers a sixteen year old cold case murder that might provide an answer no one wants to hear.

To make things worse, previous events are coming back to haunt her in the form of a man who wants revenge, at any cost.

As the walls close in, and answers feel further away than ever, Patterson finds herself in a situation that she might not escape. At least, alive…

PUBLISHER

West Street Publishing, September 2023

Co-authored by Sonya Sargent and Anthony M. Strong

A shocking murder rocks a small seaside community…

Newly minted special agent, Patterson Blake, fresh out of Quantico, hasn’t seen much action since arriving at the FBI’s New York Field Office weeks before. In fact, she’s beginning to think her life will be nothing but routine inquiries and boring paperwork.

Until she receives a call late one night with an unexpected assignment. A man has been brutally murdered. Bludgeoned to death on the stage of a community theater in the idyllic resort town of Montauk.

Now she must team up with an experienced special agent to investigate a disturbing crime that has left an entire community on edge.

As the rookie agent and her partner dig deeper into the horrific killing, they will uncover a web of deceit and betrayal that will leave them baffled. And put their very lives in danger.

Patterson Blake is about to discover that the FBI is anything but boring…

PUBLISHER

West Street Publishing, October 2021

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• West Street Publishing

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• German: West Street Publishing

Something terrifying has awakened in the bayou…

When a pair of moonshiners out on an illicit midnight delivery disappears, no one pays much attention. Until their truck is found abandoned on a lonely back road, and not far away, their mutilated bodies. Stumped, the local police chalk it up to a wild animal.

But the killer isn’t done.

Another attack swiftly follows. A pair of teenagers at a popular swimming hole. But this time there is a survivor, and she tells of a monstrous beast with yellow eyes and sharp teeth. A monster that should not exist.

Now, with the townsfolk up in arms and fearing yet more deadly attacks, Sheriff John Decker must hunt this impossible creature and bring it down before it can kill again. Because if he doesn’t, the next victim might be someone he loves…

PUBLISHER

West Street Publishing, December 2015

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• West Street Publishing

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• German: West Street Publishing

In a secret lab abandoned for decades, a terror from the past has stirred.

In a tunnel deep beneath an Alaskan mountain, a man is brutally murdered. The first in a series of grisly deaths. It is not long before whispers grow that the Qalupalik, a frightening creature born from centuries of superstition and fear, has come to wreak havoc on the remote coastal settlement of Shackleton, Alaska.

But the town hides a dark secret, and the real killer might be more terrifying than any local legend. Because deep beneath a crumbling tower once owned by the military lies a long-forgotten lab with a terrifying history.

When a pair of thieves break in to plunder the lab, they find more than they bargained for, and unleash the past in ways they could never imagine.

Now it’s up to disgraced ex-cop John Decker to do what no one else can. Stop a killer that should not exist.

PUBLISHER

West Street Publishing, June 2016

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• West Street Publishing

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• German: West Street Publishing

John Decker finds himself up against a relentless foe!

Deep in the Florida woodlands, a pair of recreational divers are attacked and killed. Miles away, a research team captures an impossible sight on their remote-operated submersible. Meanwhile, a team of bank robbers speeds toward their Florida hideout.

As deaths mount, ex-sheriff John Decker is called from a much-needed vacation by a longtime friend, to help a baffled police department track an impossible enemy. Thrust into one of the most dangerous situations of his life, Decker must combat not only a ruthless killer but a cadre of criminals with nothing to lose.

And the stakes could not be higher, because if Decker fails, it could lead not only to his own death but the demise of the woman he loves.

PUBLISHER

West Street Publishing, August 2020

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• West Street Publishing

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• German: West Street Publishing

A terrifying force unleashed on the Irish countryside.

Under a ruined monastery near the quaint village of Clareconnell, a labyrinth of caves hides a dark secret. The remains of Grendel. Defeated by Beowulf and entombed there by the Danes, he has remained hidden for a thousand years, guarded first by warriors, then by monks, and finally by the villagers themselves. But nothing stays lost forever. A team of archaeologists are excavating the monastery and searching for his grave. Because Grendel’s bones may hold the key to a medical breakthrough that could change the world.

When John Decker, newly recruited to the shadowy organization called CUSP, arrives in the Emerald Isle to retrieve the bones, he discovers that there’s more to this idyllic village than meets the eye. For Clareconnell has a dark and shameful past, and now that the caves have been opened, the villagers must pay for their sins…

PUBLISHER

West Street Publishing, October 2020

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• West Street Publishing

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• German: West Street Publishing

An impossible killer stalks the streets of London.

Jack the Ripper faded into history over a century ago, his identity lost to the ages. Until a work crew restoring a Mayfair home make a shocking find. A secret basement room walled up since Victorian times. The Whitechapel murderer’s lair. And inside, a corpse that has waited in silent darkness for over a hundred years. But it won’t stay that way…

Within hours of the room’s discovery, the body goes missing, and the murders begin anew.

With a violent killer on the loose and the body count rising, John Decker, still new to CUSP, is sent to England, along with seasoned operative Colum O’Shea. Their mission: stop a ruthless monster from obtaining the one thing that will allow him to escape forever.

As the city huddles in fear and the terror mounts, Decker finds himself in a race against time to catch a hellish fiend smarter than any he has ever faced. Because if he doesn’t, the next death might hit a little too close to home.

PUBLISHER

West Street Publishing, November 2020

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• West Street Publishing

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• German: West Street Publishing

A secret mission. A horror beyond imagination.

In the last months of World War Two, the German Navy premiered a new and terrifying weapon. A submarine of incredible range that could strike anywhere, anytime. And it did, prowling the shipping lanes night and day, and striking fear into the Allies. It was just what Hitler needed to turn the tide of war. Until it disappeared without a trace.

Now, more than seven decades later, the wreck of a previously unknown U-Boat has been found off the South American coast. A submarine so well preserved that it shouldn’t exist. Eager to learn its secrets, a team of marine archaeologists arrives at a unique seafloor habitat to study the wreck up close. But something has survived on the empty sub. A dark and terrifying presence.

Answering the panicked researcher’s distress call, CUSP sends John Decker to assess the situation. What he finds on the cold and lonely ocean floor is unlike anything he has seen before. A horror from the blackest days of the war. And it doesn’t want them to leave. At least, not alive.

PUBLISHER

West Street Publishing, February 2021

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• West Street Publishing

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• German: West Street Publishing

In the darkness they wait, patient, hungry…

They are found huddled together in a frontier mineshaft. Three mummified corpses sitting near a vein of gold so rich it would have made them wealthy. Yet they never tried to leave. Instead, they sat down and starved to death rather than walk out.

When Robyn Miller inherits her father’s share of an old ghost town in Nevada that has been in the family for generations, she decides to pack up and make a new life by creating a one-of-a-kind wedding venue and tourist attraction. Eager to put her plans into action, she hires a trio of geologists to survey the crumbling gold mine so that she can start offering tours. But only one of them makes it out alive, and he brings with him a tale of mummified corpses and seams of gold. He also tells of a creature deep in the tunnels. A beast with glowing red eyes that attacked them, killing his companions and almost murdering him.

The local police, unable to find answers, call in the FBI, who in turn ask CUSP for help. When John Decker arrives in the remote mining town he finds a terrifying adversary that dates all the way back to the Gold Rush, and an ancient legend come to life.

PUBLISHER

West Street Publishing, May 2021

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• West Street Publishing

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• German: West Street Publishing

Deep in the Amazon jungle, a world beyond imagination.

In the dense and dangerous Amazon, the crew of the supernatural reality series, Cryptid Quest, makes a stunning discovery. A Bronze Age fortress of Mayan design, hidden by impenetrable jungle and far from where it should be. But that’s not all. They also find tantalizing evidence of Egyptian and Greek influence—An impossible collision of ancient cultures that leaves them baffled. Then, without warning, they disappear without a trace.

Determined to find out what happened, John Decker travels to South America. Arriving in the humid Amazonian jungle, he joins a team of specialists pulled together from all corners of the globe, including a ghost from his past—An old flame he thought was out of his life forever.

But this is the least of Decker’s worries because when the group treks deep into the overgrown and unexplored jungle, they find themselves trapped in a forgotten land where death lurks around every corner, and the nightmares of the ancient world live on. Cut off from civilization, and under siege, they must solve the riddle of the ancient ruins and find a way out, or die trying…

PUBLISHER

West Street Publishing, September 2021

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• West Street Publishing

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• German: West Street Publishing

An island with a secret, deep inside the Bermuda Triangle.

After a tumultuous year, the last thing on John Decker’s mind when he and his fiancée, Nancy, arrive on the tropical island paradise of Singer Cay, is the Bermuda Triangle. He’s about to marry the woman he loves, surrounded by friends and family. A well-earned break and a dream destination wedding.

But Singer Cay hides a dark and mysterious past. There’s the abandoned resort on the far side of the island, where another bride vanished on her own wedding night one hundred years ago, during a storm that blew up out of nowhere.

A quarter century later, as thunder rumbled and lightning split the sky, a squadron of Navy torpedo bombers on a routine training exercise flew over the island and vanished into thin air.

Now another deadly storm is rolling in, a violent tempest with the power to separate Decker and Nancy before they can even say I do, and plunge them deep into the heart of the Bermuda Triangle…

PUBLISHER

West Street Publishing, February 2022

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• West Street Publishing

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• German: West Street Publishing

John Decker has never been so far from home…

Alone in the year 1911 and stranded in London, John Decker searches for Mina, whom he fears is trapped in the past along with him. Instead, he finds the precursor to CUSP, an organization known as The Order of St. George. And when he does, it raises more questions than answers.

Meanwhile, in a village on the city’s outskirts, something terrifying has been released. A supernatural force that drives people to murder.

Agreeing to help the Order, Decker arrives in the tiny hamlet of Mavendale to investigate, where he finds an abandoned workhouse shuttered decades before, a history soaked in blood, and a malevolent entity looking for victims…

PUBLISHER

West Street Publishing, August 2022

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• West Street Publishing

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• German: West Street Publishing

The Ghost of Christmas Past is waiting…

It’s Christmas in 1911, and John Decker is stuck in London, far from those he loves. When he gets invited to a holiday party at a manor house in the country, he reluctantly agrees to go, expecting a quiet few days of holiday cheer.

But Blackthorn Manor is not just any country house. It hides a dark secret from centuries past, and a restless spirit that never left.

After a seance designed to entertain the guests, a ten-year-old boy goes missing, and Decker finds himself embroiled in a deadly mystery spanning the ages.

PUBLISHER

West Street Publishing, December 2022

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• German: West Street Publishing

An ill-fated ocean liner on a tragic date with destiny…

A cursed Egyptian mummy on its way to the New World…

A frantic race against time…

April, 1912. With Mina still missing, and no clue to her whereabouts, John Decker has spent the last four months frantically searching. But now he might have found her. There’s only one problem. He will have to board one of the most infamous ocean liners in history in order to get her back. The RMS Titanic.

With no other choice, he follows her aboard, intending to disembark in Queenstown before the mighty ship steams toward her deadly encounter with an iceberg. But it might not be that simple. The men who abducted Mina will not let her go without a fight. There are other problems, too. An ancient Egyptian mummy in the hold that might not be as dead as everyone thinks, and a dangerous enemy Decker has encountered before who have their own plans for the mummy… and Mina.

John Decker might just have found himself in the worst situation of his life. A situation with no way out.

PUBLISHER

West Street Publishing, December 2022

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• German: West Street Publishing

Deep in the bowels of the Brooklyn Bridge, a grisly murder terrifies the city…

Fresh off the Carpathia after surviving the sinking of the RMS Titanic, John Decker and his companion Mina find themselves in 1912 New York City penniless and with no idea what to do next.

Meanwhile, an elaborate party ends in tragedy when a guest is found dead. A trail of inhuman footprints leading away from the body is the only clue. When a second murder occurs days later, it becomes clear that the attacks are not random, and at the center of the mystery is Clarence Rothman, a man who might hold the key to helping Decker and Mina get back to their own time.

Assisted by an old acquaintance of Thomas Finch who now lives in New York, they insert themselves into the case. But when the creature turns its murderous intentions on Clarence, Decker realizes that if he can’t save the man, their only chance of returning to the twenty-first century will vanish, and they will be stuck in the past forever.

PUBLISHER

West Street Publishing, May 2023

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• German: West Street Publishing

A mysterious letter, hidden away for over a century, awakens something that should have stayed sleeping.

PUBLISHER

West Street Publishing, November 2023

A murdered billionaire. A priceless statue. A reclusive cult.

In New York City, Homicide Detective John Decker arrives at a brutal crime scene. A man has been tortured and murdered in his own house, a sprawling mansion on the Upper East Side. But this is no ordinary home invasion. Nothing has been taken, and there appears to be no motive. Until beautiful Egyptologist Emma Wilson shows up with an enigmatic letter penned by the victim.

Soon Decker is thrust into a shadowy world of ancient beliefs, fanatical cults, and the quest for a priceless artifact – a rare statue of the Egyptian god Anubis.

Now, with their lives in grave danger, Decker and Emma must solve the mystery of the statue, and stay one step ahead of a cult with one thing on their minds, the return of their god, and the judgment of all mankind.

PUBLISHER

West Street Publishing, October 2016

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• West Street Publishing

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• German: West Street Publishing

A small town driven to madness…

Something is very wrong in the small town of Blatchford, Pennsylvania. Previously law abiding citizens are being driven to extreme acts of paranoid violence and even murder. Is it just a rash of unusual crimes, or is there a more sinister explanation?

Classified Universal Special Projects specialist Colum O’Shea and ex-FBI agent turned CUSP operative Shelby Beck are sent there to find out.

What they find in the small rural town is even more baffling and dangerous than either of them could imagine . . . The question is, can they stop it before more people get hurt?

PUBLISHER

West Street Publishing, March 2023

When a group of campers in the Maine wilderness are attacked by a large, bipedal creature they claim to be a Bigfoot, John Decker is sent to investigate, and what he finds is stranger than he ever would have believed, and just as deadly…

PUBLISHER

West Street Publishing, June 2023

There’s something wrong with Willow House.

When author Andrew Whelan and his children, teenager Sarah and ten-year-old Jake, move from Boston to a house in the country, they think it will be a new start. Grieving the loss of his wife in an auto accident the year before, Andrew hopes that the rural setting will help bring them together again and finally allow them to heal.

But the old house hides a terrifying secret, an injustice perpetrated long ago during the time of the Salem witch trials. A restless spirit haunts Willow House, a supernatural force with one thing on its mind. Soon the family find themselves pitted against an evil entity that will stop at nothing to exact revenge for an age-old grudge.

PUBLISHER

West Street Publishing, March 2017

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• West Street Publishing

Life can change in the blink of an eye.

Just ask Hayden Stone. One minute he’s on his way to visit his brother in New York, the next he’s running for his life. Previously normal people are becoming mindless killers, at least, those that don’t vanish into thin air. Worse, there are other things out there, frightening things that should not exist.

Thrust into a world in which nothing works, no phones, no internet, no cars, Hayden, and a ragtag group of dazed survivors must pull together to achieve the impossible. Survive.

PUBLISHER

West Street Publishing, January 2016

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• West Street Publishing

Everything Hayden Stone thought he knew was wrong. Even his own identity.

Saved from a collapsing alternate reality but forced to leave one of their own behind, Hayden and Clara find themselves in a strange and dangerous world where millions vie to win the Great Migration. A lottery that promises a better life but brings only death.

Reeling from the discovery that their lives were nothing but a cleverly crafted illusion, he and Clara must flee from a duplicitous government that wants them silenced forever.

Worse, something is happening to Clara. Something bad that threatens to tear her sanity apart.

Their only hope of saving themselves, rescuing their friend, and curing Clara? A mysterious figure from Hayden’s lost past. But finding her won’t be easy, and if they fail, it could have deadly consequences.

PUBLISHER

West Street Publishing, June 2022