I think you can use one like me

You feel a bit hurt in your pride that this woman denies your help. Perhaps you should persist a bit.

"I think you can use one like me. No offense. But your girls do not seem prepared to fight someone like the witch. They will get eaten alive. With me on your team you will at least stand a chance." You say as you realize there is no time for subtility.

The women look angry and offended because of your words but you do not care.
"How dare you." Anna replies furiously.

She looks at you as she seems to make up her mind.

"I will fight you here and now. If you manage to best me I will accept you on my team. If not your corpse will stay here for the crows."

You look in her eyes and realize there is no turning back. You either back up your words or you will end up killed. There is no middle ground. Just how are you used to. Just how you like it.

"Sure thing darling. What weapons do you want to fight with?"

Ann smiles wickedly.
"I leave that up to you hero. We can fight with swords or our bare hands. Your funeral."