"It's Christmas Eve, and a scary snow monster is out to ruin the holiday. Can Scooby-Doo, Shaggy, Velma, Daphne, and Fred solve the mystery before Christmas morning?"-- Publisher's website.
"A comic reader." "Based on the episode 'A Scooby-Doo Christmas' by John Collier ... [and others]." Originally published in different form as A merry scary holiday: New York : Scholastic, 2011