After a strange cloud of glowing white bats save them from a sudden attack by Man-Bat, Batman and Robin begin to unravel the mystery behind Gotham's fallen angel. But how is Man-Bat involved, and what did he mean when he said "Stay away from the light?" Answers begin to come to light in BATMAN AND ROBIN #21, the second part of "Dark Knight vs. White Knight" by Peter J. Tomasi and Patrick Gleason, in stores March 9.