Trail of Danger (True Blue K-9 Unit)
By Valerie Hansen (Love Inspired Suspense)
Release date: September 3, 2019
What she forgot could kill herA heart-stopping True Blue K-9 Unit bookInjured by an attack she can’t remember, Abigail Jones knows someone’s after her, but she doesn’t know why or who. Now the man who rescued her, Officer Reed Branson, and his K-9 partner will shield her while she regains her memory. But unraveling the mystery surrounding Abigail leads to more questions than answers…and to a ruthless enemy who’s determined to take their lives.
Trail of Evidence: A thrilling romantic suspense (Capitol K-9 Unit)
By Lynette Eason (Love Inspired Suspense)
Release date: May 5, 2015
SAVING HIS SON Why is a dead woman’s phone—evidence in a murder investigation—in Jonas Parker’s son’s bedroom? Dangerous thugs are after that phone and his terrified teenager, so the single father turns to Capitol K-9 Unit officer Brooke Clark. Years ago, Brooke broke Jonas’s heart without explanation. But he has to trust her and her highly-trained golden retriever to keep his son safe. When the boy goes missing, Jonas and Brooke must make peace with their past to find the teen—before increasingly desperate criminals get to him first. Capitol K-9 Unit: These lawmen solve the toughest cases with the help of their brave canine partners.
Trail of Lies (Texas Ranger Justice)
By Margaret Daley (Love Inspired Suspense)
Release date: April 12, 2011
As the mother of a beautiful daughter and the wife of a wealthy entrepreneur, Melora Hudson seemed happy. No one knew about the secrets hidden behind closed doors—secrets Melora was forced to keep. Now, two years after her husband’s disappearance, the truth may be exposed. His body has been found, and everyone has questions. Texas Ranger Daniel Boone Riley comes to find answers, and stays to protect the woman and child who win his heart.
Trail of Mountain Secrets (National Park Protectors Book 2)
By Darlene L. Turner (Love Inspired Suspense)
Release date: November 25, 2025
A case of mistaken identity. A K-9 to the rescue. Park archaeologist Violet Hoyt’s wilderness search for a missing family’s remains takes a deadly turn when a gunman mistakes her for someone else. The discovery of a grave of skulls reopens a cold case, and someone is determined to keep the truth hidden. With the help of K-9 handler Maverick Shaw and his human-remains-detector dog, Wolf, Violet must find the final family member—and evade the masked man who has targeted her.
Trail of Secrets (The Cold Case Files)
By Sandra Robbins (Love Inspired Suspense)
Release date: May 1, 2014
“CALL SETH. ” After a brutal attack, that’s all that Callie Lattimer’s uncle Dan, a former police officer, can say. Callie knows that Memphis cop Seth Dawtry will help, even if it means working with the woman who rejected him. The attack seems tied to a decades-old unsolved murder Dan could never let go. New evidence must have gotten him uncomfortably close to the truth.
Trail of Suspicion
By Jennifer Pierce (Love Inspired Suspense)
Release date: September 30, 2025
Uncovering buried secrets could be fatal for a K-9 and his handler. When crime scene technician Aurora “Rory” James and her K-9, Moose, stumble upon a dead body in the woods, she finds herself fighting off a killer who wants to hide his crimes. Although she’s the criminal’s next target, Rory doesn’t want protection from Sergeant Asher Mitchell—the man who implicated her father in her mother’s disappearance years ago. But as the attacks escalate and they discover that a second body belongs to Rory’s missing mother, Asher realizes that the murderer will do anything to stop the police investigation. Can Rory and Asher catch the culprit before they become the next victims?
Trail of Threats (Mountain Country K-9 Unit Book 6)
By Jessica R. Patch (Love Inspired Suspense)
Release date: August 20, 2024
An arsonist at large…
A K-9 team in the line of fire. Single mom Sadie Owens’s fear of being watched is confirmed when her home is set ablaze—while she and her son are trapped inside. Officer Rocco Manelli and his arson dog arrive in the nick of time to make a rescue. But as attacks persist, it’s up to Rocco to keep Sadie and her three-year-old safe from a criminal with a lethal agenda. Can he keep a vengeful arsonist from scorching a deadly path through Elk Valley—before Sadie and her son become the next victims?
Trailing Justice (Refuge Cove Book 3)
By Christy Barritt (River Heights)
Release date: March 31, 2026
When criminal defense attorney Kori Hutchins arrives in Blue Ridge Hollow searching for her missing sister, she expects resistance from local law enforcement. She doesn’t expect park ranger Wyatt King and his search and rescue dog Thunder to become her greatest allies—or for Mackenzie’s disappearance to lead them into a danger that runs far deeper than a lost hiker. With a blizzard behind them and the clock running out, Kori will have to decide how much she trusts a man she just met—and how far she’s willing to go for a sister who may not want to be found. Read more.
Trailing a Killer (K-9 Search and Rescue Book 2)
By Carol J. Post (Love Inspired Suspense)
Release date: February 1, 2021
A killer with an explosive agenda…And a K-9 and determined detective on the case. In a hurricane’s aftermath, Detective Erin Jeffries is stunned when she and her search-and-rescue K-9, Alcee, uncover a collapsed building’s only survivor—her long-ago ex, Cody Elbourne. And it’s quickly clear that the disaster was no accident. Now only Cody can identify the man who set the explosives that killed his grandfather…and Erin must stop the killer dead set on silencing him. From Harlequin Love Inspired Suspense: Courage.
Trained to Defend (K-9 Mountain Guardians)
By Christy Barritt (Love Inspired Suspense)
Release date: January 7, 2020
“Take Buzz and run. Far away. …and don’t trust the police. ”Framed for her boss’s murder, Sarah Peterson is on the run—with only her boss’s loyal husky, Buzz, for protection. To clear her name and keep her safe, she must rely on her ex-fiancé, former detective Colton Hawk.

