The 'Ygiroth Inscription

Written in Aklo, by the primitive scribes of 'Ygiroth. A lengthy inscription made upon the walls of a subterranean temple in the ruins of 'Ygiroth. This inscription contains a powerful spells which can make the caster the ruler of the Dreamlands, and possibly the Waking World. This is the only spell contained, and the details of the spell are left for the Keeper to decide to best fit his/her campaign.