The former cultist of the dungeon coven still wears his robes, his face obscured entirely in shadow with only two glowing eyes, but he's at least changed his ways since you met the Lunatic Cultist and defeated him. Now, he is on your side to save Terraria.

It's nice to see the marvellous sun for once... All of those rituals in the night put such strain on my eyes. You don't... have eye drops, do you?...

Uh... Nevermind. Forget I asked.