BATMAN FLASH THE BUTTON DELUXE EDITION

A bloodstained smiley-face button embedded in the Batcave wall sets two of the DC Universe's greatest detectives on a collision course with reality itself. Batman and the Flash investigate the mysterious artifact left behind by the events of DC Universe Rebirth, a hunt that drags them through time, pits them against Reverse-Flash, and uncovers truths about their universe no one was ever meant to find.

Joshua Williamson and Jason Fabok's acclaimed four-part crossover from Batman #21–22 and The Flash #21–22 is collected here in a deluxe hardcover with bonus material.