Ancient Summoning

Shervina Asbara says, "I've purified the mixture of blood and bone in order to make what I think is a potion of summoning. This potion should summon an ancient drake, which was defeated long ago by the lizardmen. When the drake was killed, the lizardmen took a totem. This totem, unfortunately, had exerted a magical influence on them, binding the lizardmen through fear, giving the drakes control over them. Use this potion on the drake bones to the southeast, and destroy the lizardmen that come."