Christmas is here, but the Winchester witches aren't exactly teeming with good cheer. Well, they are, but it's not the sort of Christmas cheer Aunt Tillie wants waiting for her under this year's tree.

When Aunt Tillie finds out her great-nieces want to separate for Christmas Day - forgoing the family's annual tradition - she decides to teach them a little lesson. Of course, since she's Aunt Tillie, her dose of retribution comes in the form of her favorite holiday Christmas stories.

For Bay and Landon, that means they’re shoved into "A Witchmas Carol", one of Aunt Tillie’s favorite tales. That should mean hugs and happiness, right? Yeah, try toil and trouble instead.

Bay and Landon have to work their way through memories of the past, guilt over the present and absolute terror when facing their future if they expect to come out the other side. To escape, they have to figure out exactly what Aunt Tillie wants... and she's got a few tricks up her sleeve.

So, it's that time of the year. Things are about to get merry... and maybe a little messy... for the Winchesters. There's no better time to hitch a ride on the mayhem sleigh.

A Witchmas Carol is a fantasy set in the Wicked Witches of the Midwest world. It falls between A Witch Before Dying and All My Witches in the timeline.