Batman may own the night, but with new villains emerging during the day he needs an ally to defend the city when he can't. Only one teen is up to the challenge, Duke Thomas. After months of training, he's ready to step out of the shadow of the bat to become his own kind of hero. Meet Gotham City's newest protector: The Signal! Spinning out of adventures in ALL-STAR BATMAN and WE ARE ROBIN, comics superstar Scott Snyder and newcomer Tony Patrick take our young hero to new heights in this exciting miniseries with artwork by Cully Hamner.