Best Bud With Benefits

Earn Stonehead’s friendship in Revendreth.

You can get this achievement, and gain the right to pass past Stonehead without being thrown, by completing the quest Snacks for Stonehead. This quest starts from the Chewed Light Shard beside him.

You can get close enough to the quest item by using one of the nearby Hollow Rocks to disguise yourself (one of the rocks in at /way 38.9, 64.3).