Written by DAVID HINE; Co-feature written by GREG RUCKA; Art by JEREMY HAUN; Co-feature art by CULLY HAMNER; Cover by CLIFF CHIANG

Writer David Hine joins DETECTIVE for "Beneath the Mask" part 1! The inmates of Arkham Asylum have taken over! It's Black Mask versus Jeremiah Arkham for control of the asylum. But what of the enigmatic Three Beauties, and how does Batman fit into the mad plan?