Face of Our Enemy

Exploration Stage: Witches’ Abode
From: Isabelle
Description: "The metamorphosis that Petrus’s soul underwent is unique. Now I clearly see what’s hidden under the stone mask on his face." It turns out that Magda was able to see the true face of our enemy. Hurry, let’s find it in the Abode. It will help us defeat Petrus.
Completed: The mask you found is similar to the one that hides Petrus’s face... Wait, there are some markings on the reverse side of it. I feel the energy of a human soul in them.