Blood. Vengeance. A killer's twisted justice.

A scarred predator stalks decorated war heroes, crossing names off his kill list with surgical precision. Each brutal murder brings him closer to his ultimate target.

When the system fails, some men make their own rules.

Ex-cop Mathias O'Halleran walked away from his badge the day protocol got an innocent child killed. Now working for O'Halleran Security International, he operates where justice isn't bound by red tape. When war heroes start turning up mutilated, he'll cross every line to stop their killer.

The dead are screaming. She's the only one listening.

Forensic pathologist Dr. Beatrice Rose Parker has spent her career giving voice to murder victims. But when five heroes are unearthed from shallow graves, she faces a forensic nightmare that will test every skill she possesses.

The hunter becomes the hunted.

As Beatrice races to decode the killer's message and Mathias closes in, the predator makes his most dangerous move yet-putting Mathias's father directly in his crosshairs.

Some scars never heal. Some debts demand blood.

DEADLY APPRENTICE is Book 5 in the O'Halleran Security International Series (OSI).
Watch for the other books in TJ Logan's thrilling O'Halleran Security Int'l. series: DEADLY SECRET, DEADLY DISCIPLE, DEADLY DECEPTION, DEADLY JUDGMENT, DEADLY WATCHER, and DEADLY REDEEMER.

Check out DANGEROUS OBSESSION, DANGEROUS PROTOCOL, DANGEROUS PURSUIT, and DANGEROUS HUNTER in the exciting OSI Dark Ops spin-off series!

Each of the books in the OSI Series and the OSI Dark Ops series are stand-alones with their own HEA