They Took Everything From Her. Now She’s Taking It Back.

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.

The Handler

Wounded and grieving after the death of her K9 partner, Maddie Castle is thrust back into action when a fellow handler is killed, and his dog’s fate hangs in the balance. As she trains to rehabilitate the traumatized K9, a desperate mother’s plea pulls Maddie into the criminal underworld of Pittsburgh, where powerful players will do anything to keep their dark secrets hidden. To uncover the truth, Maddie must face her deepest fears—and risk her life.

Tracking Justice

When a grieving mother refuses to accept the police’s conclusion about her daughter’s death, Maddie Castle and her loyal K9, Tempest, take the case. The trail leads them to shocking evidence of murder. As Maddie unravels the truth, she faces relentless threats from a killer determined to silence her. Solving the case could bring closure—but the cost may be Maddie’s own life.

Hunting Grounds

A ruthless killer from Maddie’s past resurfaces, leaving a trail of terror in Pittsburgh. Still haunted by their last encounter, Maddie teams up with the FBI and her trusty K9 to hunt him down. But the killer is always one step ahead—and Maddie herself is on his hit list. In a deadly game of cat and mouse, she must confront her darkest fears to survive a final, explosive showdown.

Packed with suspense, heart, and action, the Maddie Castle series is perfect for fans of gritty thrillers and unstoppable heroines. Get the bundle now and join Maddie Castle on her relentless quest for justice!