Detective Comics #986

Black Lightning, the Signal and Cassandra Cain are working very well together...but now theyre up against a foe who can tap directly into their worst emotions and play them like music! When youve seen the kinds of horrors these poor souls have, theres plenty of trauma to work with...and with that, you can turn these heroes into deadly weapons! Meanwhile Batmans side project has been revealedwhat are the Brainiac Files, and what, exactly, does Batman plan to do with them?