POSSIBLE SPOILERS
Bought the book the day it came out. Spent two days straight reading it. Last night I got sick, had a fever and kept waking up every few hours bathed in cold sweat from nightmares about oDNA and Bolton.
Shudder.
I'm going to go a head and say that even though
Nightworld scared me so badly i was checking windows every night for a month before I went to bed,
Bloodline wins the creep factor by a wide margin.
I loved it.