Posting for assistance ( Sif Drachendotir ) in finding/opening the Infamous "Treasure Vault of Kasil" Kasil Ravenkron's vault/tomb. (Out beyond western Landfall, between Trollfen Forest and Blasted Plateau.)
Kasil recruited the best mages and rogues to create multiple treasure vaults in which to store his wealth and plunder. Some of the easier and more well known vaults have already been delved into and looted.
What reason Kasil had for building so may different and varying deadliness vaults remains a mystery today. Rumors abound that Kasil was trying to hide loot, safeguard dangerous objects, or even prepare gauntlets designed to thin out his competitors and/or descendants.