Batman: Nevermore is apparently part of the "Elseworlds" series. I'm guessing that's some deal where they can put Batman in historical situations without screwing up the continuity. I don't know and can't be arsed to figure it out right now. The series is written by Len Wein and the art by Guy Davis looks serviceable. The only thing I care about is the series gave Bernie Wrightson a chance to do five nice covers featuring Edgar Allan Poe and a Batman that looks kind of off (in a good way) with a big beak.
Batman: Nevermore #1, June 2003.
Batman: Nevermore #2, July 2003.
Batman: Nevermore #3, August 2003.
Batman: Nevermore #4, September 2003.
Batman: Nevermore #5, October 2003.