Books like Edge, The (FBI Thriller) by Catherine Coulter

When a coastal dog retrieves a bone that turns out to be human, Isa Wilde’s idyllic village of Salten is thrust into terror as her childhood friends uncover a dark secret, unraveling their shared past.

Investigating the brutal murders of two vacationing families in sunny Virginia Beach, FBI agents Ryan Sinclair and Buzz Crane suspect the work of a notorious serial killer and tap the skills of preeminent clinical expert Charlotte Stone, who is also the culprit's only known survivor.

Ford MacDougal, a former Quantico investigator, returns to Oregon after a terrorist bombing to find his sister’s startled disappearance entwined with a murder and a dangerously intriguing woman, all while FBI agents hunt lurking threats.

Dear Reader: You're about to enter a labyrinth where the unthinkable happens and the unimaginable becomes terrifyingly real. Escaping unwanted media attention after a notorious incident, Ramsey Hunt retreats into the solitude of a cabin high in the Colorado Rockies. But his isolation is shattered when he rescues a small girl unconscious in the forest and strangers invade his private meadow, their intent to kill. Molly Santera, the little girl's mother, catches up with Ramsey and her daughter, mistaking him for the kidnapper. When she discovers that he instead saved Emma, there's little time for thanks. The men pursuing want them badly. Savich and Sherlock (The Maze) as well as MAX, the transvestite laptop, return to assist. Ramsey and Molly, facing constant danger, unravel the clues and ultimately discover why they're at the center of the target. FBI - 3

LAPD detective Hieronymous (aka Harry) Bosch is a loner and a nighthawk. Called out on a routine drug overdose case, Bosch soon realises that the victim found lying in the Mullholland Dam drainpipe is no accident case. Billy Meadows was a fellow 'tunnel rat' in Vietnam and Harry swears to bring the killer to justice.