Matt believes a madman may hold the secret to defeating Mr. Dark, the horrific jester with the rotting touch. But to reach him, Matt must infiltrate a lunatic asylum, where he is soon caught up in a spiral of bloodshed and madness. His only chance of escaping with his life and sanity intact is to face the unspeakable terror that awaits him deep in the asylum's fog-shrouded woods...within the Ring of Knives.