You had defeated the Devourer of Gods, Yharon, Dragon of Rebirth, and even Draedon and his Exo-Mechs, there was little in your way at that moment between you and Yharim, your entire journey had led you to that moment, every being killed by you, every person killed by him, would you make all that blood spilled worth it?

As you prepared to advance, outside your house the figure in that red cloak attacked

Do you enjoy going through hell?

She was powerful, like nothing you had faced until now, you hardly knew if you could really defeat her. She revealed herself as Calamitas, The Supreme Witch. You remember that name, she was from his court, just like the others

You've harnessed great power, but you wield it for no one but yourself... an upstart who recklessly stole and killed their way to power. I wonder, who does that remind me of...?

You kept the pace on this battle in a cruel standoff, the stifling heat, the brimstone flames on her wake, the corpses revived by her power, the sorrow soul of her past victims all against you

You have no stake in this battle. No one gave you any say in this matter! Once the dust has settled and only one remains, if it is you, what value will this have had?!

But you persist, incredibly coming out on top of her brothers' resuscitations, that Sepulcher, even that whispering maelstorm. Your determination made hers weaken more and more as you proved to her what she didn't want to see

Just stop! I have no future if I lose here. Once you have bested me, you will only have one path forward. And that path... also has no future.

Her mind seemed to break in the final moments, beginning to see what she didn't want, she had suffered all her life because of that man, and his deeds, his abilities, she was afraid that you were like him, that you would bring misfortune upon Terraria too, but you had proven yourself now, your will and desire for revenge were so... similar

Even if he has thrown all else away, his power remains. I have no more energy left to resent him, or you... It will all be in your hands now.

She simply stopped fighting, she gave up and landed in front of you, her expression was... empty, but full of remorse.

I certainly can't return to the Tyrant's old dwellings now, have you... got any places to stay?

You took her with you to the town you had built, she may have an emotional reunion with Permafrost, the Archmage, her former mentor who you had freed from his seal a while ago, and an awkward reunion with Amidias, the Sea King, Ilmerian former king of the kingdom she had incinerated, she simply remained silent, in compassion for his pain

She moved into one of the town's houses and seems to have adapted to her new neighbors and interactions, you go talk to see how she was. She was reading a book in her room when you came in.