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 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.

After surviving a terrible attack, Quinn Fleming has recovered in every way but one—her ability to retain new memories. Now, months later, it appears to the outside world as if the San Diego florist’s life is back to normal. But Quinn is barely holding on, relying on a notebook she carries with her at all times, a record of her entire existence since the assault. So when she witnesses a murder in the shadowy alley behind the florist shop, Quinn immediately writes down every terrifying detail of the incident before her amnesia wipes it away.

It’s every parent’s nightmare—getting a call during the school day from their teenager, huddled in a classroom as the sound of bullets echo in the background. When gunmen invade a Brooklyn school, that nightmare becomes a horrific reality. Talking a suspect into sending his hostages out alive is NYPD Detective Gemma Capello’s specialty. Alerted to a school shooting at her nephew’s high school, she is one of the first officers on-scene. Detective Sean Logan and the Apprehension Tactical Team arrive next and immediately enter the school to apprehend the two shooters.

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.

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.

Wilderness expert and dog trainer Raine Stockton agrees to help lead a survival skills training camp for her fiancés executive team. She is unaware that she and her tracking dog, Cisco, are walking into a hotbed of corporate intrigue involving espionage and stolen technology. Everyone at the retreat is a suspect, and no one can be trusted. And none of them is aware that, while their small drama plays out, a much bigger threat is stalking them.

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.

After her mother’s death during a bank robbery when she was a child, Gemma Capello grew up to become one of the NYPD’s elite hostage negotiators. In a family of cops, there’s rarely a day when a Capello isn’t facing down some form of threat. Still, despite their unpredictable schedules, they always find time for their annual family summer picnic. But this year, a sudden phone call changes everything.

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.

This collection includes Chasing Justice, Hunting the Truth, and Killer Secrets.

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.

On Rikers Island, tensions always run high, especially in the Enhanced Supervision Housing unit. The ESH is home to Rikers’ most dangerous offenders, many of them members of rival street gangs. When Gemma Capello and her team get word of an uprising at the ESH, they know how much is at stake. Gemma also has her own unresolved feelings to deal with — this is the first case she and Detective Sean Logan have worked together since a siege at City Hall that ended with the hostage taker’s death.

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.

When her estranged uncle attempts to sabotage her family’s reindeer ranch, K-9 team assistant Katie Kapowski heads home to help save it—and becomes his target. With their rocky past, Alaska State Trooper Brayden Ford and his furry partner are the last team Katie wants assigned to protect her. But with the ranch under siege, they must work together…or risk falling victim to a 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.

After her mother’s death during a bank robbery when she was a child, Gemma Capello grew up to become one of the NYPD’s elite hostage negotiators. In a family of cops, there’s rarely a day when a Capello isn’t facing down some form of threat. Still, despite their unpredictable schedules, they always find time for their annual family summer picnic. But this year, a sudden phone call changes everything.

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.

It’s every parent’s nightmare—getting a call during the school day from their teenager, huddled in a classroom as the sound of bullets echo in the background. When gunmen invade a Brooklyn school, that nightmare becomes a horrific reality. Talking a suspect into sending his hostages out alive is NYPD Detective Gemma Capello’s specialty. Alerted to a school shooting at her nephew’s high school, she is one of the first officers on-scene. Detective Sean Logan and the Apprehension Tactical Team arrive next and immediately enter the school to apprehend the two shooters.

After surviving a terrible attack, Quinn Fleming has recovered in every way but one—her ability to retain new memories. Now, months later, it appears to the outside world as if the San Diego florist’s life is back to normal. But Quinn is barely holding on, relying on a notebook she carries with her at all times, a record of her entire existence since the assault. So when she witnesses a murder in the shadowy alley behind the florist shop, Quinn immediately writes down every terrifying detail of the incident before her amnesia wipes it away.

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.

On Rikers Island, tensions always run high, especially in the Enhanced Supervision Housing unit. The ESH is home to Rikers’ most dangerous offenders, many of them members of rival street gangs. When Gemma Capello and her team get word of an uprising at the ESH, they know how much is at stake. Gemma also has her own unresolved feelings to deal with — this is the first case she and Detective Sean Logan have worked together since a siege at City Hall that ended with the hostage taker’s death.

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.

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.

Eden Mercer, a determined young officer in the fog-shrouded, tight-knit town of Nightfall, Oregon, is haunted by her past in a fundamentalist cult. With her loyal K-9 partner, Shadow, by her side, she’s eager to prove herself in a department dominated by machismo. When a couple stumbles upon a woman’s body in a ritualistic burial deep within the dense, misty forests, Eden is thrust into a chilling mystery. As she delves deeper, disturbing clues and unsettling secrets tied to a local cult emerge.

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.

Small Town Thriller! Joscelyn Turner’s life is torn apart when she flees a deranged stalker who terrorizes her night and day. Seeking refuge in a small Montana town, she befriends the Stone family and is welcomed into their local ranching community. Her newfound sense of security and belonging are rocked when her deadly past comes calling. But this time, it’s not only Joscelyn's life that's on the line.

It’s tough working nights with the NYPD. The crime rate is high, the hours are terrible, and forget about a personal life. So, when Officer O’Reilly and her K-9 Rolf switch over to the day shift, things look up. She’s even able to find time for a new boyfriend. But when the theft of a priceless painting from the Queens Museum leaves a fellow police officer dead, Erin and her four-legged partner find themselves dealing with dangerous criminals, sleazy art dealers, and obstructive detectives in a race to capture the killers...and just maybe bring closure to a 75-year-old crime.

When autistic dog rehabilitator Maddie "Mad Girl" Whitney discovers a corpse on her neighbor's ranch, she impulsively tries to drum up business by claiming that psychic abilities led her to the victim . . . with devastating consequences. Maddie's forced to start a K-9 Search and Rescue team with her ex-girlfriend's twin, a hostile sheriff, or risk losing her beloved former military dog. She reluctantly begins reaching out to others . . . and finds friendship and kindness in the unlikeliest of places.

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.