Batman Vs. Bigby! A Wolf In Gotham

'''Batman vs. Bigby! A Wolf in Gotham''' is a six-issue series featuring the fan-favorite Fables character crossing over into the DCU. The DC Black Label series is written by Willingham and with pencils by comic book-tattoo artist Brian Level, inks by Jay Leisten, and colors by Lee Loughridge.

Overview
With the blood dry at Gotham’s fourth gruesome murder scene in as many weeks, Batman is stumped. The same hallmarks haunt each investigation: brute-force entries, bodies ripped to shreds and stamped with enormous bite marks, and clumps of fur-wolf fur-scattered in the wreckage. The streets buzz with rumors of the “Werewolf of Gotham.” Worlds collide as a Gotham mystery kick-starts a return to the world of Fables!

Trivia

 * According to Bill Willingham, the Batman vs. Bigby series is canon for Fables. However, he doesn't know if it will be canon in the DCU, since he doesn't get to decide that.
 * In Fables continuity the series takes place a year or so following the events of the new 12-issue Fables arc, which (ironically) came out following the Batman vs. Bigby series.