Batman : the long Halloween

Enhanced descriptions from Syndetics:

Christmas. St. Patrick's Day. Easter. As the calendar's days stack up, so do the bodies littered in the streets of Gotham City. A murderer is loose, killing only on holidays. The only man that can stop this fiend? The Dark Knight. In a mystery taking place during Batman's early days of crime fighting, Batman: The Long Halloween is one of the greatest Dark Knight stories ever told.

Working with District Attorney Harvey Dent and Lieutenant James Gordon, Batman races against the calendar as he tries to discover who Holiday is before he claims his next victim each month. A mystery that has the reader continually guessing the identity of the killer, this story also ties into the events that transform Harvey Dent into Batman's deadly enemy, Two-Face.

The magnificent creative team of Jeph Loeb and Tim Sale reach their apex in Batman: The Long Halloween . This edition includes original 13-issue series as well as four additional story pages cut from the original series, which are presented fully colored and restored to their place in the story. Also featured are sketches and an introduction by the director and writer of The Dark Knight Rises , Christopher Nolan and David Goyer.