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By what definition is this ride an Adaptation Expansion, rather than an Alternative Continuity? Among the flat-out contradictions from canon - Voldemort and Bellatrix appearing in Gringotts and battling the trio (we are shown the entire adventure from the Trio's perspective in the novels - at no point do Voldemort or Bellatrix appear), Bill still working at Gringotts at the the time of the adventure (the novels make it clear he has gone into hiding with his family at Shell Cottage, and has stopped going to work), and the dragon's chain being tied to a mine cart full of new Gringotts account-holders. All of these are in direct contradiction to canon, not merely an expansion of it.
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How well does it match the trope?