Sorcerer Supreme's Mentor

This world was dangerous. No amount of caution was excessive; after all, a cautious sailor could sail for ten thousand years. This had always been Evenson's guiding principle as someone who cherished life.

But now, he realized that no matter how careful he was, he had still underestimated just how dangerous this world could be. Just look at the Sorcerer Supreme before him, who had seemed righteous her entire life. She had gone dark just like that—so suddenly, without any warning whatsoever, giving no one time to prepare themselves.

"You've always known that I was not as kind and virtuous as I appeared. The essence of the power I wield is profoundly dark." Ancient One stood with her hands behind her back, facing Evenson, whose magical power had begun to stir within his body. Yet seeing his loose stance and shifted center of gravity, she felt that he was not preparing to fight her, but to run at any moment.

"But how did I obtain this power? How did I learn of its existence? Why was it that everyone else who came into contact with this power heard Dormammu's whispers and submitted to him, while I was immune? The answer lies there—in R'lyeh."

"You admitted it! You finally admitted it!" Evenson raised a hand and pointed at Ancient One. "You admitted that your power came from R'lyeh! You didn't submit to Dormammu because you had already given yourself to Cthulhu! A loyal servant cannot serve two masters!" Evenson gave Ancient One a thumbs-up. "You really are loyal!"

Ancient One paused. Why was this so hard to explain?

"I am telling you that the power in R'lyeh is not as dangerous as you imagine! Since gaining power from there, I have devoted myself to protecting this world, and so far, I