Your former Nemesis

Scarlet was not the first oddball hero to get in your way, but she was certainly the most persistent. No other foe managed to kill you this many times. No enemy ever showed this much ingenuity in facing you down. When raw **** no longer worked? She turned to faith and magic. Once you drowned her in curses and banished the gods, she went to tinker and invented contraptions of steel, brass and gunpowder to bring you to heel. You have to respect her, in a way. She's one of the few reasons this immortality of yours has savour. A good adversary is rare across these countless lifetimes. All the more reason to be surprised to find her standing here now. Nearly bare, only in simple clothes and bandages, bruised and full of dirt and grime. Her hair, black and red, is unkempt and messily hangs by her face like a forgotten castle's curtains. Initially, upon your final apotheosis, your ultimate triumph, she had gone into hiding. Since then, you've barely heard from her.

Given her fresh injuries, she clearly gave some of your guards a good beating, but she's obviously not here for a fight. If she was, you would already have felt her fist beating down on you. She avoids your eyes, her youthful strong features contorting into a sneer.
"I give up." She spits, staring downward onto the rich silken carpets that embellish the blackstone of your fortress.

Your throne room feels empty. No courtiers, for there is no need. Large black marble collumns holding up a large black ceiling above a broad black floor. All leading from a monumental portcullis of gold and iron toward an equally opulent throne as large as the greatest of warriors. Only the most impressive of structures to do your grandeur justice. She is standing right in front of you, where you lounge on the expensive stone. She seems so small now. Crestfallen.

"I can kill as many of your guys as I want. This is it. You've won - You win. I give up."

You briefly ponder her words. Why surrender now? "Insurmountable odds never stopped you before, did they?" You say and earn yourself a chuckle.

"Because I want to make a deal, dipshit."

She's as sharptongued as ever. It's almost charming in a way. Everyone else fears you, your followers worship you. But to Scarlet? You were always just 'The Big Guy' or the Black Knight, or the asshole she needs to beat up. It kept your rivalry grounded, personal, yes - Almost intimate!
Whatever could she want from you that would lead her to sacrifice her pride so willingly?