Atlus Knights in the Nightmare - Role Playing Game - UMD - PSP. Somewhere between heaven and the underworld in the center of a quiet lake stood an ancient castle known as Avent Heim. Without warning, denizens of the netherworld emerged and slaughtered the kingdom; nary a soul was left alive. Within an abandoned, long-forgotten church deep in the woods, the Wisp is set free. Bereft of memory, it is drawn toward the monster-infested castle and re-awakens the souls of the vanquished knights, leading them back towards the fallen stronghold to confront the very forces of evil that took their lives.
