Inferno

Larry Niven, Jerry Pournelle

This is a story about a man (Allen Carpenter) who really doesn't have much of a life. He is a writer. He is at a party, gets pretty drunk, he gets to goofing off by an open window and takes a tumble right out the window! The next thing he knows, he is waking up. He just doesn't know where he is. He is joined up after a while, finds out he is in hell, and begins his own personal journey out.