When Duke Felmet murders King Verence and takes over the small country of Lancre on the Discworld, three witches are involuntarily tasked with protecting the king's baby son.

Julie Walters and a big friendly snow baby? It’s the Christmas telly we deserve. Terry Pratchett’s short story is animated in a half-hour adaptation, following Granny (Walters) and her grandson Albert (Hugh Dancy) as they rescue a 14ft furry creature. Not everyone in their town is happy about it – is a lesson in Christmas spirit in order?