Download or read book Batman (2016-) #21 written by Tom King and published by DC Comics. This book was released on 2017-04-19 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: “THE BUTTON” part one! The cataclysmic events of DC UNIVERSE: REBIRTH #1 continue here! The Dark Knight and The Fastest Man Alive, the two greatest detectives on any world, unite to explore the mystery behind a certain blood-stained smiley button embedded in the Batcave wall. What starts as a simple investigation turns deadly when the secrets of the button prove irresistible to an unwelcome third party—and it’s not who anyone suspects! It’s a mystery woven through time, and the ticking clock starts here!