During his European travels, Quirrell discovered the barely-alive Voldemort, who had been in hiding since his failed bid to kill Harry as an infant. Quirrell became attracted to Voldemort's offers of power, and returned to Britain with the Dark Lord. Quirrell addresses and refers to Voldemort by that name, rather than "The Dark Lord" as other Death Eaters do. Initially, Voldemort allowed Quirrell to act autonomously – Quirrell was able to shake hands with Harry in the Leaky Cauldron, and was not wearing the turban, meaning that Voldemort was not possessing him (though this changes in the film version, where Quirrell wears the turban at the Leaky Cauldron and refuses to shake Harry's hand). Voldemort first used Quirrell in a plan to steal the Philosopher's Stone from its vault in Gringotts Bank, where it had been deposited for safekeeping by Dumbledore. But Dumbledore had already sent Hagrid on a mission to retrieve the Stone, which he did while he and Harry were shopping in Diagon Alley, after they met with Quirrell in the Leaky Cauldron.