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.

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.

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.

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.

Dive into the world of Maddie Castle, a retired K9 handler turned private investigator, in this heart-pounding collection of the first three novels in the bestselling series. From gripping mysteries to life-threatening pursuits, Maddie and her canine partners battle danger, corruption, and their own pasts to bring justice to those who need it most.

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.

As a native of the small town of Hansonville, North Carolina,and a wilderness rescue worker, Raine Stockton knows the Smoky Mountains as well as anyone could, but she gave up her Search and Rescue work after a tragic loss. Now she reluctantly returns to active duty to help find a young child who has been kidnapped and taken deep into the forest.

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.

On his thirty-sixth birthday, Travis Cornell hikes into the foothills of the Santa Ana Mountains. But his path is soon blocked by a bedraggled Golden Retriever who will let him go no further into the dark woods. That morning, Travis had been desperate to find some happiness in his lonely, seemingly cursed life. What he finds is a dog of alarming intelligence that soon leads him into a relentless storm of mankind’s darkest creation....

Thirty years ago, Wilde was found as a boy living feral in the woods, with no memory of his past. Now an adult, he still doesn't know where he comes from, and another child has gone missing. No one seems to take Naomi Pine's disappearance seriously, not even her father - with one exception. Hester Crimstein, a television criminal attorney, knows through her grandson that Naomi was relentlessly bullied at school. Hester asks Wilde - with whom she shares a tragic connection - to use his unique skills to help find Naomi.

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.

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.

Another witness had come forward, saying they were sure they had seen someone of Tom’s description near one of the old mine pit lakes. It was going on two years now since his disappearance, but of course, anything was possible. After all, while the clues had gone cold and witness memories faded, there was one thing that doesn’t die away, the scent of death. And that is where the dogs come in.

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.

After a tragic loss, Jessica Chamberlain changes jobs, moves, and adopts a rowdy German shepherd. The two begin training with a Virginia search-and-rescue group. The group's training director, Nathan Tanner, is a former military working dog handler with scars of his own and he quickly picks up on Jess's ongoing anxiety. After the unexpected discovery of a body in the woods, Jess and her dog and Nate are drawn into the FBI's search for an abductor targeting women. Tormented by her past and terrified of the future, Jess still forges ahead.

Officer Luz is lucky she still has a job after tasering a male colleague where it counts the most. Sure, he had it coming - which is why the police chief is giving Megan a second chance. The catch? Her new partner can't carry a gun, can't drive a cruiser, and can't recite the Miranda Rights. Because her new partner is a big furry police dog. So that's what the chief meant when he called Megan's partner a real bitch...With Brigit out on the beat, Megan is writing up enough tickets to wallpaper the whole station.

Luke Michaels' relaxing camping trip ends when he witnesses a woman being thrown from a bridge. He dives into the river to save her, shocked to find her wrapped in chains. As a canine search and rescue volunteer, Luke has assisted many victims, but never a beauty whose defeated gaze ignites his primal urge to protect. When Megan Witherspoon's killers make it clear they won't stop, Luke fights to save her, but can he keep her alive long enough to find out who is after her?

Meet Laci Jollett, a seasoned detective frustrated by the lack of a qualified partner. When her supervisor assigns her to K9 Suii—short for Suicide—Laci finds herself navigating an unfamiliar set of rules and a partnership unlike any she’s known. Determined to get back to working with a human partner, she’s in for a surprise. As Laci digs deeper into Suii’s mysterious past, she uncovers secrets that transform their relationship. In the process, Suii teaches Laci the true meaning of loyalty, forging a bond she never expected. This heartwarming story of friendship and trust will ...

Melanie Starks has never lived life by the rules. She and her 17-year-old son, Charlie, have been running one con job or another for as long as she can remember, justifying the petty crimes as the necessary survival moves of a single mother. But Melanie is ready to give it up.

When a fellow FBI agent is kidnapped and a protected witness vanishes, Leo Gallagher will stop at nothing to find them both. So when he discovers a link between the case and a single mother in Wyoming, Leo and his trusty K-9 partner rush to question Alicia Duncan. Could she be the key to locating the missing persons?

Grieving the death of his partner, Theo Bosco has no room in his life for distractions. Though his instincts scream that he should avoid Juliet "Jules" Jackson, he can't seem to stay away. When Jules rescued her siblings, whisking them away to the safety of the beautifully rugged Colorado Rockies, she never expected to catch the eye - or the heart - of a cop. Yet as Jules struggles to fight her growing attraction to the brooding K9 officer, another threat lurks much closer to home. And this time, there's no escape.

Call it a premonition. Call it intuition. Call it anything you like, but Pennsylvania State Trooper Jerry McNeal simply thinks of it as “that feeling.” That feeling may come on without warning, so intense he can’t breathe.

After years of working the streets of Miami, veteran detective Jon Marzett craves a quieter life. Taking a job as sheriff in the sleepy town of Big Pine Key seems like the perfect place to wind down his career. But the town harbors dark secrets, and corruption festers deep below the surface of what seems like paradise. Jon soon finds himself thrust into a battle against a powerful cartel determined to maintain its grip on his new hometown.

Crack CIA analyst Trista Gold is a whiz with the computer, but not so much with people. She hides behind her job, analyzing top-secret code and making recommendations on national security. CIA K-9 officer Sgt. Matt Connors suspects that beneath Trista's uptight appearance, there's a sexy woman itching to cut loose. But he doesn't dare act on his attraction. He's a loner and always will be. Keeping away from Trista is a must-do directive. Until he doesn't have a choice. During a routine assignment, Trista stumbles across a cryptic exchange. Then someone tries to murder her - twice.

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.

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.

Lucy Champagne was sent to St. Cecilia’s after her movie-star mother was brutally attacked by her sleazy boyfriend, Ray Watkins. Lucy’s damning testimony landed Ray a 25-year sentence. But now, Ray is free. And he’s going to find Lucy and make her pay, no matter how far and how fast she runs....