At 3pm, the party reaches the corner of the canyon wall where it turns to the north once more. Here they find an etched altar holding a crystal about six feet in diameter, and a small complex of rooms. Inside the rooms they find two matching wheels attached to a wall with a rope mechanism. The wheels can be turned into six different positions, with runes carved into each position. After a moment of testing by turning the wheels and hearing grinding from above and below them, they set the wheels to their original position and head down a curved sloping entrance to the dungeon. 