Praise for Head Cases

"In this suspenseful cat and mouse thriller, Camden balances brilliance with a deeply flawed awareness of social cues, retaining the edge of a compelling protagonist. This, combined with McMahon's gripping plot, will pull readers in."--Booklist

"McMahon introduces several clever wrinkles to this classic cat-and-mouse setup, while making the socially awkward Camden and his colleagues three-dimensional enough to sustain future installments. With pulse-pounding action and enough surprises to blindside even seasoned mystery fans, this is an excellent start." -Publishers Weekly (Starred review)

"A must for your TBR pile."--FirstClue

"Head Cases begins as a riveting story about the hunt for an apex predator--a killer of serial killers--but quickly becomes so much more: the only road back to what's left of one man's family, friendships, and identity. It's a taut, thrilling read." --Jess Lourey, Edgar-nominated author of The Taken Ones

"Grabbed me from page one!" - J.A. Jance

"John McMahon's Head Cases is everything this crime fiction-lover could want: gripping, twisty, and atmospheric, with a harrowing and intriguing plot, gorgeous prose, and fresh and compelling characters. McMahon doesn't just knock the ball out of the park with this one--he sends it flying into the next universe. I sincerely hope this is the beginning of a new series because I want more!" - Karen Dionne, author of the #1 international bestseller The Marsh King's Daughter and The Wicked Sister

"I couldn't get enough of this addictive, propulsive story of intellect and intrigue. Head Cases is a masterfully-done game of cat and mouse with an unforgettable cast of characters." --Matthew Quirk, New York Times bestselling author of The Night Agent