Stoneheart is used to create the reagent Blood Spawn. It is forbidden, though most mages in Serpent Isle have some hidden away. In Moonshade, Stoneheart can only be possessed with the permission of the Magelord. Prolonged exposure to stoneheart causes uncontrollable fits and insanity. The Mountains of Freedom were sealed when Stoneheart was found within, but some few mages still voluntarily enter the mountains in an attempt to get Stoneheart. Stoneheart can also be found in the Skullcrusher Mountains.