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by Gillian Cross
In this thrilling mystery adventure, a group of clever students must uncover the sinister secrets of their seemingly ordinary headmaster who appears to be conducting dangerous experiments. Packed with suspense, puzzle-solving, and unexpected twists, this sequel will keep young readers engaged as they root for the protagonists to expose the truth and stop a menacing threat. A gripping page-turner that combines mystery, science fiction elements, and the triumph of wit over villainy.
Oxf.U.P.
163
9780192763686
1996-01-01
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