History
Preface: Heroes Reborn
Some time ago, the heroes of Earth-616 clashed with the psionic entity known as Onslaught a being spawned from the dark sides of Charles Xavier and Magneto. In the final battle the Avengers and Fantastic Four and many of their allies seemingly sacrificed their lives to destroy Onslaught.[1] In reality they were transported to a pocket dimension with a reproduction of Earth (later dubbed Counter-Earth by Franklin Richards where they were reborn into new lives that were similar to those of their lives on Earth-616.[2][3][4][5] After living in this pocket dimension the heroes were eventually returned to their native Earth.[6]
Following the events of M-Day,[7] Onslaught was resurrected and he immediately sought to get revenge against Franklin Richards attacking him at the Baxter Building home of his family the Fantastic Four. When Onslaught kept on possessing the various members of the Fantastic Four, Franklin sought to escape by creating a new pocket dimension based on the original Counter-Earth to escape in.[8]
This pocket dimension had it's own version of the Avengers and Fantastic Four based on the lives the heroes lived when they were reborn on Counter-Earth, however there were many distinct differences. Unlike Counter-Earth, the heroes of this world were not transported from Earth-616 to live out new lives, they were all creations of Franklin Richard's mind. For example, unlike his Counter-Earth counterpart the Thor in this dimension reverts into Donald Blake after being separated from his hammer Mjolnir for sixty seconds.[9] Also unlike Counter-Earth or Earth-616, Hawkeye is not Clint Barton on this world, but the mutant Logan, known in many realities as Wolverine.[10]