Here are the original versions of some of Asimov"s famous works: Grow Old With Me, his first novel, which was greatly expanded at Doubleday"s request and published as Pebble in the Sky; the original novella version of his novel The End of Eternity; and the original short story version of Belief and the ending of the final revised novelette version of Belief. (The first two thirds of the story are same in both versions.) Asimov also supplies extensive introductions and afterwords to each story.