FOR USE IN SCHOOLS AND LIBRARIES ONLY. The Vampire's Assistant chronicles Darren Shan's new lonely life as a half-vampire, pumped with the cursed blood of his vampire guardian, Mr. Crepsley. Darren has much to learn about his freshly supernatural state.FOR USE IN SCHOOLS AND LIBRARIES ONLY. The Vampire's Assistant chronicles Darren Shan's new lonely life as a half-vampire, pumped with the cursed blood of his vampire guardian, Mr. Crepsley. Darren has much to learn about his freshly supernatural state.