ARC Review: Fighting Edge by Margaret Mizushima

Fighting Edge
Author: Margaret Mizushima
Series: Timber Creek K-9 Mysteries (Book 11)
Publication: Crooked Lane Books (September 8, 2026)

Description: Major crimes intersect in this nail-biting installment of the Timber Creek K-9 mysteries by award-winning author Margaret Mizushima.

A routine welfare check becomes a nightmare when Deputy Mattie Walker finds a young mother dead and a hysterical toddler, possibly the only witness to a brutal crime. Before the investigative team can start piecing together what happened, Mattie discovers another criminal act in Timber Creek.

During a traffic stop for speeding, Mattie observes a nervous driver and a teenage passenger frozen with fear. A quick sweep of the car with her K-9 partner, Robo, reveals a dangerous mix of drugs and suspected human trafficking, providing Mattie with grounds to arrest the driver. After she places the teenager in protective custody, the sheriff’s department hands the case over to the Colorado Bureau of Investigation.

As the team gathers evidence and information, Mattie’s husband, veterinarian Cole Walker, notices suspicious activity during ambulatory calls at dog kennels, indicating yet a third crime lurking in the shadows. What begins as isolated incidents quickly reveals a chilling truth: Organized crime has infiltrated their rural mountain community.

Every clue leads to more questions, and each answer brings them closer to greater danger. Do Mattie and her law enforcement partners have what it takes to shut down this criminal ring before it claims more victims? And could its next victim be someone Mattie loves?

My Thoughts: Deputy Mattie Walker and her dog Robo are called to do a welfare check and find a young mother dead on her couch with her two-year-old Emma crying in her crib. With drug paraphernalia left in the house the cause of death looks clear but still suspicious. And it seems Emma saw her mother's death but can't speak clearly enough to tell the police what happened. 

Meanwhile, veterinarian Cole Walker is seeing a new patient at his clinic. He's doing a pre-purchase check of a rottweiler that Bret Beaty is interested in purchasing for breeding. He and his family are still getting over an attack in which he and his teenage daughter were held at gunpoint in his clinic.

Then Mattie makes a routine traffic stop and encounters what looks like a trafficking situation to her. Robo uncovers a cache of drugs in the car's spare tire which gives her a reason to arrest the driver and retain the scared teen who is with him. 

The young mother had been a victim of trafficking until she managed to escape and start a new life in Colorado. Now, it looks like her past has caught up with her and trafficking is finding its way to small town Colorado.

This was another exciting episode in the Timber Creek K-9 mysteries. I love the relationship between Mattie and her K-9 Robo. I also like her growing closeness with her new husband Cole and Cole's two daughters. 

I received this one in exchange for an honest review from NetGalley. You can buy your copy here.