The Fury of Firestorm: The Nuclear Men #3

When someone tries to create a hero of godlike power, there are bound to be a few bumps in the road. And one of those failed, twisted experiments has been kept in a bunker deep underground, far too dangerous and horrific to be allowed to see daylight. Until the mysterious Zither lets this nuclear nightmare free to kill all of Earth's Firestorms! Presenting the shambling horror that was meant to be a savior: Helix!

Characters: Firestorm (Raymond), Firestorm (Rusch), Fury (Firestorm), Helix (Firestorm), Professor Martin Stein, Tonya Lu, Zither