A question about All-Star Superman (SPOILERS!)

Grant Morrison's All-Star Superman has to be one of my favorite Superman stories. But one thing has been bugging me ever since I read it: How does Superman get back from the sun? Is there a trade that covers this? And if so, is it worth a read?

Any help is appreciated. Thanks for reading. :)

I don't think there is a story that follows-up on All-Star Superman, and I think it's best that way. However, I might be wrong and I would read something like that.

Anyways, All-Star Superman is absolutely amazing!

All-Star Superman is an open and close story. There's no follow up to it and it's only assumed that Clark will come back from the sun by Lois and the others. From what I remember he doesn't return to earth until he becomes "Superman ?" (the Superman with the ? logo and the bandage wrapped around his head and face). Also, this story is the "what happens" for when Clark becomes Superman Prime 1 Million.