The BEST book you've ever read?

Have you ever read a book and at the end you almost crap your pants cause' it was just that good!! Or maybe this is frequent for you and you've done it on several occions, either way, what is the best book or the best 5 books you've read? Everyone has that ONE book that completely stands out in their minds but some of you answerers always respond "well it depends" or roundabouting the answer in such a way that never gives a definitive answer. SO!!! Best book (or books) you've ever read?