I picked this up because I'd really enjoyed Lethem's "Gun With Occasional Music", "Motherless Brooklyn", and parts of "The Wall of the Sky, The Wall of the Eye". Unfortunately, this surrealist sci-fi road-trip never leads anywhere interesting. Chaos, the amnesiac hero, is on a quest to discover the truth of what what happened the world (we are given hints of alien attack, nuclear/biological holocaust, etc.) and his own identity. However, memory, time and truth seem to be totally subjective in this landscape and are somehow dictated and controlled by his dreams. The overwhelming subjectivity results in a surprisingly dull roadtrip, as he struggles to find himself in a world which makes no sense. As with some of Lethem's other work (especially his short stories), there are a some interesting ideas, flashes of genius writing, and the sense that Lethem doesn't know how to finish what he's started. Unless you're really into dreamlike surrealism, skip this one, 'cause Lethem's capable of much better.