So -- put her in red-hot shoes and have her dance till she dies? Chase her out into the woods so wolves eat here? Put her in a barrel lined with knives and roll it up and down until she dies? The thing is, our hero is not the king, only the prince, and the king is foolishly fond of the villainess. You couldn't even bet him to ask what sort of punishment is suitable for her crimes, let alone inflict it on her. (And she might even be clever enough not to propose the worst punishment, herself.) Running away is out for the same reason, and forgiving her will only bring on more. . .
Hmmm -- I think she will suffer the fate of Sleeping Beauty's mother-in-law. (You didn't know about Sleeping Beauty's mother-in-law? Education really has gone to pot.) Her final attempt to kill the heroine ends with her being revealed to all, and throwing herself into a pit of snakes and toads.
And having signed, sealed, and delivered her to her fate -- I remember -- what about the heroine's brother? I had never introduced him on stage, but he did start her whole problems off. Hmmm -- perhaps I will introduce him into "Ferdinard the Faithful and Ferdinard the Unfaithful" or something of that ilk. And have her hear about it in the middle of the story, so he's disposed of.