The Void

The Void lies behind the Source Wall. It is there, where Trigon, Mr. Mxyzptlk and Spectre were transported during their battle at the end of Injustice: Year Three. After Atrocitus kills Hal Jordan, he Boom Tubes him there, to prevent the Green Lantern Ring from finding a succesor. Spectre takes control of Hal Jordan's coprse and resurrects him in the process. He defeats Trigon and Mr. Mxyzptlk, imprisones them in the Source Wall, and travels to the Rock of Eternity to confront Mordru.