The Red Death is a version of Batman from Earth -52, originally an aged man who broke after the deaths of Dick, Jason, Tim, and Damian.

Believing he has a chance to prevent the loss of more loved ones, Bruce decides he needs the Flash's Speed Force to achieve this and equipped himself with the Rogues' equipment of capture the Flash. He is able to knock Barry out and ties him to the Batmobile which has a machine created from reverse-engineering the Cosmic Treadmill attached to it.

Using this machine against Barry's wishes, Bruce drove straight into the Speed Force while absorbing Barry in the process. Horribly scarred and now suffering from a split-personality created from residual traces of the Earth -52 Barry's mind, the newly born Red Death tests his new powers but realises he cannot stop his Earth from its destruction until he is recruited by The Batman Who Laughs, who promises him a new Earth to live upon.

#flash #speedster