From her small Quantico office, Special Agent Maggie O'Dell has profiled serial killers using Polaroids, faxed copies, and scraps of evidence provided by homicide detectives from across the country. She's gained a reputation for successfully profiling killers and solving crimes, without ever stepping foot at a real crime scene. Then comes Albert Stucky, and nothing will ever be the same.

They dubbed him the Collector, so named for his ritual of collecting victims before disposing of them in the most heinous ways possible. FBI Special Agent Maggie O'Dell spent two years tracking him down, caught in a game of cat and mouse that left her forever marked by this killer.

When teenage sisters go missing in the mysterious "Bennington Triangle" of Vermont, an area renowned for its disappearances and strange occurrences over the past 100 years, FBI agent Jack Juarez brings K-9 handler Jamie Flint and her dog Phantom in to assist with the search. When Jack realizes the case shares haunting similarities with the murders of the missing girls' aunts 10 years before, it becomes clear that he and Jamie are dealing with much more than two girls who simply wandered off the beaten path.

Meg and Hawk are part of the FBI's elite K-9 unit. Hawk can sniff out bodies anywhere - living or dead - whether it's tracking a criminal or finding a missing person. When a bomb rips apart a government building on the National Mall in Washington, D.C., it takes all of the team's extensive search-and-rescue training to locate and save the workers and visitors buried beneath the rubble.

Caitlyn Reed and her dog, Renegade, are thrown into the midst of murder and intrigue when they discover a dead body while on a trail ride in the black hills of Wyoming. The local sheriff is hell-bent on a conviction, and Caitlyn’s brother, Dylan, is in his crosshairs. Desperate to prove his innocence, Caitlyn turns to Deputy Colt Branson for help, but she must grapple with their rocky romantic past to gain his aid. As Caitlyn and Renegade pursue the killer, the investigation catapults their lives in a dangerous new direction.

While hiking in the foothills of the Rocky Mountains, FBI Special Agent Kendra Dean and her K9 partner, Baxter, stumble upon a dead body stashed in the woods. The discovery changes both of their lives forever. Special Agent Rick Sanchez hunts a serial murderer who is targeting women on a multi-state killing spree. Kendra Dean, an agent Rick met on a joint mission six months ago, has found the most recent victim. Rick and Kendra once shared a tempting chemistry but time and miles made their spark a distant memory.

When a young girl is found dead in the mountains outside Timber Creek, lifelong resident Officer Mattie Cobb and her partner, K-9 police dog Robo, are assigned to the case that has rocked the small Colorado town. With the help of Cole Walker, a local veterinarian and single father, Mattie and Robo must track down the truth before it claims another victim. But the more Mattie investigates, the more she realizes how many secrets her town holds. And the key may be Cole's daughter, who knows more than she's saying.

Mason "Mace" Reid lives on the outskirts of Chicago and specializes in human-remains detection. He trains dogs to hunt for the dead. Reid’s coming off a taxing year - mourning the death of a beloved springer spaniel as well as the dissolution of his marriage. He adopts a rescue dog with a mysterious past - a golden retriever named Vira. And when Reid begins training Vira as a cadaver dog, he comes to realize just how special the newest addition to his family truly is....

After their last deployment, when she got shot, her fiancé, Martinez, got killed, and his bomb-sniffing dog, Elvis, got depressed, soldier Mercy Carr and Elvis were both sent home, her late lover’s last words ringing in her ears: “Take care of my partner.” On the Fourth of July weekend, when all of Northshire celebrates with fun and frolic and fireworks, the dog alerts to explosives and they find a squalling baby abandoned near a shallow grave filled with what appear to be human bones.

Three full length heart-racing thrillers that will keep you guessing to the very end. Experience the thrill of unexpected plot twists and irresistible chemistry.

It should have been a routine investigation. Instead, DEA K-9 agent Adam "Deck" Decker watches in horror as one Denver hospital seems to be ground zero for overdoses of a new drug. Now Deck can only hope a certain ER doctor will help him and his canine partner track down the source. Dr. Tori Sampson has her reasons for not trusting federal agents, especially ones working for the DEA. But the rash of overdoses—including a heartbreaking case involving a teen—is alarmingly high. And the new opioid is not only extremely dangerous, it defies all the usual medical treatments.

After losing her military K-9, former marine Maya Thompson swears she’ll never work with dogs again. But when she returns home to Colorado and accepts a job with US Forest Service law enforcement, fate brings K-9 Juniper into her life just as another tragedy unfolds. Juniper, a beautiful two-year-old Malinois, isn’t the only new addition to Maya’s life. Josh Colten, the local deputy sheriff, insists on helping with her new case. Handsome and mysterious, he’s all anyone in town can talk about, but Maya can’t let herself like him, let alone trust him.

Former Hanover County Sheriff Buck Lawson leaves the mountains of North Carolina to take a job as the police chief of the small South Georgia town of Mercy, and soon finds himself in over his head. For one thing, his predecessor has been murdered...Buck has inherited an unsolved homicide, a house that may well be haunted, and a police department that is almost certainly corrupt. It falls to Buck to free an innocent man and bring the former police chief’s killer to justice while wading through the quagmire of incompetence and dishonesty that permeates his office.

Veronica Kildare cannot believe her luck–being shot at, again, by the bad guys. The sound, the feel of the bullet, and the hatred resonate for more than just the transitory moment of impact. She has relocated to a new state, but brutality has rampaged into this life as well.

Spencer Quinn’s first original audio short story reveals how everyone’s favorite detective duo - Chet the Dog and P.I. Bernie Little - came to meet before their first big case in Dog On It. As fans know, Chet first met Bernie on that fateful day when he flunked out of K-9 police school. The details of that day, though, have always remained a little vague (like so much in Chet’s doggy brain). All we know is that Chet had been the best leaper in his K-9 class, but for some reason he failed his final leaping test...and that a cat was involved...and that there was some blood. But whose?

Eight years ago, in Sun Valley - snowcapped playground for the wealthy and ambitious - all that stood between New York State attorney general Elizabeth Shaler and a knife-wielding killer was local patrolman Walt Fleming. Now, Liz Shaler returns to Sun Valley as the crown jewel and keynote speaker for billionaire Patrick Cutter's world-famous C3, a media and communications conference where the richest, most powerful business tycoons converge.

As a medical examiner, Samantha Owens knows her job is to make a certain sense of death with crisp methodology and precision instruments. But the day the Tennessee floods took her husband and children, the light vanished from Sam’s life. She has been pulled into a suffocating grief no amount of workaholic ardor can penetrate - until she receives a peculiar call from Washington, D.C. On the other end of the line is an old boyfriend’s mother, asking Sam to do a second autopsy on her son.

No one can get close to John Medina, the CIA's legendary Black Ops specialist who works in the shadows of the government's deadliest missions. And no one knows the dangers better than Niema Burdock. A sharp, steely-nerved communications expert, Niema and her husband, Dallas, worked side by side with Medina on an explosive mission that went tragically wrong. Now Niema has withdrawn to a quiet Intelligence position, and a safe - if predictable - existence that has helped her heal her scars from five years ago. But now John Medina needs her....

It begins with a phone call that Nora Watts has dreaded for 15 years - since the day she gave her newborn daughter up for adoption. Bonnie has vanished. The police consider her a chronic runaway and aren't looking, leaving her desperate adoptive parents to reach out to her birth mother as a last hope. A biracial product of the foster system, transient, homeless, scarred by a past filled with pain and violence, Nora knows intimately what happens to vulnerable girls on the streets.

Los Angeles greeting-card artist Wollie Shelley is dating 40 men in 60 days as research for a radio talk show host's upcoming book. Wollie is meeting plenty of eligible bachelors but not falling in love, not until she stumbles over a dead body en route to Rio Pescado - a state-run mental hospital - and is taken hostage by a charismatic "doctor" who is on the run from the Mob.

Steven James' Christy Award-nominated crime thriller pits FBI Special Agent Bowers against a serial killer who enjoys torturing women. After visiting the mountain vistas where the murderer posed his dead victims, Bowers receives a taunting call from the "Illusionist." Although Bowers gets close, his insidious foe continues to elude him.

Haunted by a series of horrifying and violent episodes in their past, Grace McBride and the oddball crew of her software company, Monkeewrench, create a computer game where the killer is always caught, where the good guys always win. But their game becomes a nightmare when someone starts duplicating the fictional murders in real life, down to the last detail.

Private investigator Alexandra Lovell uses computer skills and cunning to help clients drop off the radar and begin new lives in safety. Melanie Bess, desperate to escape her abusive cop husband, was one of those clients. But when Melanie vanishes for real, Alex fears the worst, and sets out to discover what happened. Using every resource she can get her hands on - including an elite team of forensic scientists known as the Tracers and a jaded, sexy Austin PD detective - Alex embarks on a mission to uncover the truth.

Grace Chu is an American-educated Chinese national now working as a forensic accountant after serving in the Chinese army as an intelligence officer. John Knox is an American who parlayed his military service during the first Iraqi war into a lucrative import/export business, which now provides him the official access he needs to work freelance undercover operations throughout the world. Both are highly skilled operatives capable of deft subterfuge or extreme violence, if circumstances require.

Teddy Cannon isn’t your typical 20-something woman. She’s resourceful. She’s bright. She’s scrappy. She can also read people with uncanny precision. What she doesn’t realize: She’s actually psychic. When a series of bad decisions leads Teddy to a run-in with the police, a mysterious stranger intervenes. He invites her to apply to the School for Psychics, a facility hidden off the coast of San Francisco where students are trained like Delta Force operatives: It’s competitive, cutthroat, and highly secretive.

Alan Gregory is a clinical psychologist with a thriving practice in Boulder, Colorado. His life begins to unravel when one of his female patients is found in an apparent suicide and the local paper begins printing accusations from an unnamed source of sexual impropriety between the woman and Dr. Gregory. He launches a psychological and personal quest for the truth that rapidly intensifies when more of his patients die untimely deaths, and Gregory suspects not only that the deaths are related but that another one of his patients may be somehow involved. Lacking facts but roused by suspicion and troubled by seemingly random acts of terror around him, Gregory starts to fear for the safety of the people he loves. The question of the inviolability of confidential disclosures made to Gregory by his patients - privileged information - becomes crucial as the psychologist pursues an unsettling romance with Lauren Crowder, a lovely deputy district attorney investigating one of the deaths. Bound to silence, Gregory follows the psychological tracks of someone he fears may be a cunning and disturbed killer, while turning to his enigmatic but supportive partner, Diane Estevez, for counsel, and to his tart-tongued female urologist neighbor for support. The sinister, surprising drama unfolds against Boulder's Rocky Mountain backdrop, in the arresting natural beauty of Aspen, and in the midst of a baroque Halloween costume party in downtown Boulder. Finally, in a lonely mountain lodge enshrouded in menace, the story comes to its breathtaking climax.

Zoe Kealoha's work as a military scientist was supposed to change the way America hunted terrorists. It should not have made her a target. But it did. Now, if she has any hope of surviving, she needs help. She needs her boyfriend, Gage - the man who, up until now, had no idea what she actually did for a living....

Cassandra "Cassie" Finsbury has spent almost 25 years running for her life, hiding from everyone who knew her, and hoping it was enough to keep her daughter safe. When she learns that she no longer has to run, she is determined to find Daniela again and hires private investigator Bailey Davenport, a retired FBI agent, who is more than up to the task. Bailey finds nothing more irresistible than a mystery and a challenge, and in Cassie she finds both.

Government secrets are being sold, and the newly sworn in president of the United States already feels out of options. Without knowing the full scope of the scandal, the president decides to turn to the one person he knows he can trust - former FBI agent Elizabeth James. Her deep distrust of the system is rooted in her unfair discharge from service. Now she sees a chance to restore her reputation and send a message to those who would use their power to destroy others' lives.

The first to disappear is a ski instructor in the secluded mountains of Colorado. Hours later, a pregnant woman is abducted from a crowded hospital. Two places, two incidents, a single motive. And so it begins....