Ultimate Fantastic Four

Reed has become completely obsessed with the Cosmic Cube, and has shut everyone else out of his life. Sue leaves for a convention Reed was also invited to, just to get out of the atmosphere in the Baxter Building. As soon as Reed finishes the Cube, some form of ethereal being vacates his body, leaving him in control of his faculties once more. He emerges from the lab to learn that Sue's been shot down, and he, Johnny and Ben scramble the seven-ten split to go get her.