|"Are you a wizard or not?"
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On 1 May, 1998 Marius and another guard were confunded by Harry Potter, who broke into Gringotts with Hermione Granger (disguised as Bellatrix Lestrange), Ron Weasley (disguised as Dragomir Despard), and the former-employee Griphook, in order to steal one of Voldemort's Horcruxes from the Lestrange Vault.