Location
The Ceremony is loacated at 1373W 705S in the Glimmering Forest, roughly halfway between Hardin's Pass and Qintarra. It is marked on your by exploring the general area, usually by walking from Hardin's Pass to Qintarra.
Area
From your starting position (Point 1) you will see a handfull of Kites dancing around a campfire due west of you. One of the Kites is a berserker (Point 2) wielding a hexed shadow hand dagger.