A cold case from the Justice League's past has mysteriously reopened, and Batman and the Flash--the only two heroes who stand a chance of cracking the case--are at each other's throats. Our heroes must combat a demon from the past while burying their own inner demons in the process...and neither the World's Greatest Detective nor the Fastest Man Alive will ever be the same again! But who is really pulling the strings here? And how does Gotham Girl fit into all this? Friendships will be tested and blood will be spilled in this titanic crossover event. The next action-packed instalment of The Flash from author Joshua Williamson (Justice League vs. Suicide Squad) is here in The Flash Vol. 11! Collects The Flash #76-81.