Encounter Preview: The Unknowable Sanctum (An Eldritch Library Filled With New Types of Demons of Change!)

Hi everyone! Today, we're sharing the next of our many demons of change encounters for this month. This one features a complete otherworldly library stocked with multiple encounters with new types of demons of change, culminating with a demonic sorcerer known as Ephelym, The Unknowable. These demons include the mystic thin summoners who wield fiendish magic and can conjure a seemingly neverending assortment of demons to carry out their will.