In the fourth book of the bestselling cirque du freak series, Darren Shan and mr. Crepsley embark on a dangerous trek to the very heart of the vampire world. But they face more than the cold on Vampire Mountain-the vampa...In the fourth book of the bestselling cirque du freak series, Darren Shan and mr. Crepsley embark on a dangerous trek to the very heart of the vampire world. But they face more than the cold on Vampire Mountain-the vampaneze have been there before them.