Vault of Archavon
The entrance is in Wintergrasp at 50.1, 11.2 (/way #123 50.1 11.2).
Vault of Archavon entrance- Toravon the Ice Watcher drops 2 pieces of this set (Hands, Legs) on 10 Player. Adventure Guide map pin: 62.7, 36.4 on the Vault of Archavon map.
