向達倫和師父鬼不理以及好友伊萊離開了怪奇馬戲團，來到一個陌生的城市。在這兒，達倫和伊萊遇上了一樁血案。命案屍體的血全都被搾乾了！
　　鬼不理每晚都鬼鬼祟祟的外出，達倫和伊萊開始懷疑鬼不理是不是和命案有關？於是開始緊緊跟蹤鬼不理，卻意外發現原來鬼不理在對付更厲害的『某人』！
　　就在耶誕夜裡，正當大家都在慶祝佳節的到來時，在城市街道的下方，達倫和伊萊則將被迫面對一個邪惡的生物，他們是否能夠逃脫？或是注定要死在這地下血道當中？……
　　★本書中譯本由皇冠出版
　　Darren Shan and Evra Von follow a trail of corpses and confront a foul creature of the night. A new enemy or Mr Crepsley?
　　THE SAGA OF DARREN SHAN BOOK 3
　　When Mr Crepsley is called upon by the Vampire Generals, Darren and the snake-boy, Evra Von, leave the Cirque Du Freak and travel with him to the city. Whilst there, Darren meets Debbie and his life as a Vampire’s Assistant fades into the background – until corpes are found. Corpses drained of blood… Suspicious of Mr Crepsley’s secretive bahaviour, Darren and Evra shadow him across the city and confront a creature of the night who may be the end of them all…