This page offers a guide on where to locate and how to complete Madness of the Stones, a mystery found in Cent.
Count the Stones
This mystery is located southeast of Saint Hadrian’s Priory. As you approach the ring of stones, Eivor will comment about the strange surroundings and you’ll also begin to take some damage. When you speak to the man near the stones, he will tell you that he cannot figure out how many stones there are, as the number is always changing. Your task is to count the stones for him. The first time you count them, there should be exactly 21 stones, when you tell the man this he will ask you to count again. Upon counting again, you’ll find that the number has increased and there are now 26 stones. The man will ask you to count them again, and this time there will be 23 stones.
After counting the stones three times, the hallucination will end and so will the mystery. It turns out you were just talking to a rock all along…