From the introduction: What is death in a world like this one? Great heroes and villains alike have tasted the sweet kiss of oblivion, both deserving and not. Yet death has also been defied, and many more have returned to life through circumstance or miracle. Two heroes in particular – Hal Jordan, a Green Lantern of Earth, and Barry Allen, The Flash, both ponder this together as they talk over the gravestone of Bruce Wayne. Both had died and returned to life before. And soon, many more will return as well... but not in a way they or anyone else would expect.