Ultimately, as even Khanduras' good King Leoric fell under Diablo's wicked power, a lone hero arose to challenge the darkness that had engulfed the land. After plumbing the hellish depths of the labyrinth under Tristram, the nameless hero finally confronted the Lord of Terror himself. Knowing full well that Diablo's spirit could never be truly destroyed, the hero made the noblest sacrifice of all-- casting his soul and his very sanity aside, the hero took the spirit of Diablo into himself, hoping that his own strength of will could contain the demon within. The hero could never have known that his selfless act would not only ensure Diablo's victory, but would irrevocably damn his soul for all time.