Souls by the Sea

(She's not saving the day for herself.) Burlie McLauren is on meds and, frankly, doesn't see the point of her own survival but her family's? Oh, you don't mess with her family. Still, one dark Halloween night, a powerful witch sets out to tempt hell when he kidnaps the McLaurens for ransom. Burlie, without the slightest spark of power, must fight her way through a dreamland gauntlet of movie monsters (what?!) to save them.
And she will save them, and maybe even herself, because the greatest power on Earth is knowledge.What she knows will tear that witch's mirror world apart.