First half of the Wurmbone Key: ( -321, -145, -320 ) /waypoint -321, -145, -320 in the back of Pyre's room (not sure of strategy other than hit hard and fast.)
Second half of the Wurmbone Key: ( -321, -145, 139 ) /waypoint -321, -145, 139 in the back of Frost's room (Get him to damage a pillar and then keep hitting that one until it falls, he is nearly invincible until then.)
Map: ( -580, -118, -89 ) /waypoint -580, -118, -89 at the Forgotten Statue's feet. (If you avoid stepping in the circle, he won't attack you.)
Return to the Duality in Feerrott.
Take a druid ring to Jarsath Wastes. Once you're there, head south-southwest and pass through the cave at ( -850, 274, 1189 ) /waypoint -850, 274, 1189. After getting to the other side head to the boat to the southeast and speak to Erus Dal'viv at ( -757, -50, 1900 ) /waypoint -757, -50, 1900.
Head east to ( -1125, 124, 2004 ) /waypoint -1125, 124, 2004. Enter the cave and take the right fork then zone into Wurmbone Crag (Advanced Solo).