"Heart of Darkness"
Origin of the New 52 Trigon.
*He is the ruler of six kingdoms of pain, suffering and agony--but the one world that evades Trigon is Earth. Trigon's influence has been spread across worlds by his sons, but it wasn't until he conceived a daughter of Earthly origin that the monster finally had an heir who could aid his quest. Now, with all the world's heroes missing--is this the final victory of Trigon? *Source: dccomics.com