Flash, The (Rebirth) Vol 06 - Cold Day In Hell
When one of the Flash's Rogues is murdered inside Iron Heights prison, Barry Allen throws himself deep into the case, still reeling from the turmoil of his personal life! But when the clues begin to reveal an even greater conspiracy at work, the Flash soon discovers Iron Heights' deadliest secret... Star writer Joshua Williamson (JUSTICE LEAGUE VS. SUICIDE SQUAD) continues his smash-hit run on the Fastest Man Alive with THE FLASH VOL.
6: COLD DAY IN HELL!
Collects THE FLASH #34-38