How do I upgrade to shriek abyss?
How To Get Abyss Shriek. The Abyss Shriek is located in a tiny room in the left-most area of the Abyss. In this room is a square stone surrounded by statues that bear faces resembling the Howling Wraith attack. Stand on the stone and perform the Howling Wraith to receive the Abyss Shriek upgrade.