From publisher blurb:
From Scary Ghost Stories to Tales of Christmas Glories
The holidays have come to represent a time of joy, of giving, and forgiveness, but they weren't always that way. Drawing on the ancient religions of the past, Christianity incorporated aspects of nature deities who were as capricious as they were bountiful. Failing to propitiate them appropriately risked their wrath.
There's a reason Andy Williams' "It's the Most Wonderful Time of the Year" mentions "there'll be scary ghost stories and tales of the glories of Christmases long, long ago." Williams was talking about these nightmares, a menagerie of giant cats, tricky dwarves, flesh-eating giants, and fiendish spirits. Those four weeks are their time and they count the days until Santa arrives, watching and waiting to snatch the wicked and ungrateful.
This PDF has a bookmarked table of contents and features monsters with challenge ratings ranging from 1/8 to 15.