Hermaeus Mora

A shapeless mass with thousands of eyes and tentacles. Among these eyes there is one big one with which he watches everyone. Has a languid, calm voice. Smart, is engaged in keeping the Secrets of all Nirn. nothing and no one can hide from his eyes. He knows what was, is and will be. He is the prince of knowledge. He's the one who knows. Demon of knowledge and tides Hermaeus Mora.
Grants knowledge for the right
service. Will not forgive betrayal. Encourages unquestioning service. He is both Merciful and Cruel. He stores in his great library, the Apocrypha, thousands, millions of Secrets of all Nirn. In his kingdom of Apocrypha, nothing and no one will hide from his eyes. He is the one who knows everything first. He will know your fate and predetermine it. The most powerful of the Daedra. He can either destroy the world or save it. But he doesn’t destroy the world because he doesn’t need it. Great tentacles will envelop the faithful servant and give him a reward that he may not even know about. But Hermaeus Mora will know. "Knowledge for knowledge." If the servant gets what the Demon of Knowledge needs, he will give him generously.

First Servant Miraak