A magical keystone of crystal that is believed will unseal the dungeon tomb of the mad wizard Astillus. Ticondrius secreted it deep within the Hall of Heroes in the lands bordering the abandoned town of Arklow. The party has recovered the keystone after defeating the Hall's traps and many guardians. Ryhll's four local ogre tribes and giants from the north have been scouring the lands searching for the keystone as well. Rhyll's court is also keen on recovering the item, but it is uncertain if all the leadership involved have altruistic motives.