In the Footsteps of Saint Matheus Walkthrough
The mission will start automatically following the completion of the previous mission. Follow the marker at the same location and fight against the demon located just above the bonfire. Having defeated him, you’ll get a legendary one-handed sacrificial sword. Climb a little higher and enter the cave. Get to the distant adit with drawings on the walls. Examine six different goals. All of them are located in the same room. Having done this, talk to Petrus and complete the quest.
Reward: gold coins, 1900 experience points.