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Sent to Groosham Grange as a last resort by his parents, David quickly discovers that his new school is a very weird place indeed. New pupils are made to sign their names in blood; the French teacher disappears every full moon; the assistant headmaster keeps something very chilling in his room... Where do the other pupils vanish to at night? Most important of all, how can David get away alive?

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Anthony Horowitz, geb. 1956 in Stanmore (England), ist einer der erfolgreichsten Autoren Englands. In Deutschland ist er vor allem für seine Jugendbücher um den Helden Alex Rider bekannt. Neben zahlreichen Büchern hat er Theaterstücke und Drehbücher (u. a. Inspector Barnaby ) geschrieben.

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