Fantastic book, couldn't put it down. Didn't realize it was the first of three so the ending simultaneously thrilled/frightened/pissed me off. Can't wait for the next one.
On a side note, regarding "The Passage", I am reading the synopsis of the second one (coming out in October) and it's a little, well, odd. Seems like the story resumes back during the beginning of the crisis rather than continuing where the first book left off, but then links the new and old stories together. Anyway, looks good regardless.