User blog comment:Rose Hunter/The Old Lady's Identity?/@comment-27235572-20151104032831

Gonna nominate the witch from the Tinderbox for this since she was actually murdered by the 'hero' in the story for a pretty bad reason.

Because of this, the witch is not pleased (she's alive again, roll with it). To rectify the wrong she received, she decided to get retribution by murdering off children that she managed to lure onto her train. Talk about vengeance.

She doesn't have any special target in mind, but she does want everyone on the train to suffer in agony the way she did. She also has a fascination in fairy tales, and so, to be ironic, wants to kill them off in ways that reference their tales.

That's pretty much it. ^^