Slade House by David Mitchell. I've not read any of Mitchell's other work (it's big and scary and seems very "Modern Literature" to me which is inexpressibly frightening), but this is really good so far. Other readers mentioned that some of the characters in Slade House appear in his other books, which is a fiendishly good way to make me want to read them.
Two Graves by Preston & Child. I did make a dent in this one night, then had difficulty sleeping. I can't believe I forgot how engrossing these books are.
Les Mis is a given, but highly entertaining so far.