In conjunction with his forthcoming novel, Vanished, author Joseph Finder produced a comic featuring his creation, The Cowl.
From his site: The Cowl is written by Brian Azzarello, one of the greats in the comics world and the author of 100 Bullets and the bestselling Joker, and drawn by talented new comic artist Benito Gallego. There are limited quantities of the comic book available in print. This is an exclusive offer for fans who pre-order VANISHED. (Click here) for a letter from Joe explaining the origin of The Cowl.