Evernight

Will Thorne is living a nightmare, his sanity slowly being drained away by a force he can't control. His talents have made him the perfect assassin for hire. But as he loses his grip on reality, there is no calming him—until he finds his next target: the mysterious Holly Evernight.

Love must cast aside the shadows

Holly cannot fathom who would put a contract on her life, yet the moment she touches Will, the connection between them is elemental, undeniable—and she's the only one who can tame his bouts of madness. But other assassins are coming for Holly. Will must transform from killer to protector and find the man who wants Holly dead . . . or his only chance for redemption will be lost.

"Callihan's dazzling fifth Darkest London historical paranormal is the best installment yet. This top-notch series just keeps getting better and better."― Publishers Weekly (starred review)
"A remarkable non-stop read that sucks you in and doesn't let go." ― RT Book Reviews
Praise for Kristen Callihan:

"Callihan has a great talent for sexual tension and jaw-dropping plots that weave together brilliantly." ―Diana Gabaldon, New York Times–bestselling author of the Outlander series
"Fascinating from the very first page." ―Nalini Singh, New York Times–bestselling author of Primal Mirror