Gather 5 of either sumac lumber or bamboo shoots (closest place for harvesting is at the bottom of the ramp from Kejaan's Rill to Toxxulia's Reach). Having the materials in your inventory will update the quest immediately.
Click the Burned Offering green sparklies at the entrance to the Caves of the Great Tiger Spirit ( -405, 280, 3053 ) Copy/waypoint -405, 280, 3053 (the ramp up is at ( -296, 253, 2902 ) Copy/waypoint -296, 253, 2902)
