" Well, that's it." I said after we had waited for another five minutes and found ourselves still in a state of pleasantly welcome existence. " The ChronoGuard has shut itself down and time travel is as it should be: technically, logically, and theoretically...impossible." " Good thing, too," reply Landon. " It always made my head ache. In fact, I was thinking of doing self help book for science-fiction novelists eager to write about time travel. It would consist of a single word: Don't. "