After getting past the tasks, Harry discovers that it was Defence Against the Dark Arts teacher Quirinus Quirrell who was trying to claim the stone: Snape had actually been protecting Harry all along. Quirrell removes his turban and reveals a weak Voldemort living on the back of his head. Through an enchantment placed by Dumbledore, Harry finds the stone in his possession. Voldemort attempts to bargain the stone from Harry in exchange for reviving his parents, but Harry refuses. Quirrell attempts to kill Harry in response; however, he is instead killed after Harry ends up burning his skin, reducing Quirrell to dust and causing Voldemort's soul to rise from his ashes. Harry is knocked unconscious when Voldemort's soul passes through him.