It's Christmas at Animal Ark, and Mandy and James have an idea: a party for all the pets in Welford. But when a wounded stray sheepdog turns up, Mandy finds it hard to keep her holiday spirit while trying to save its life.

"At Animal Ark, Mandy Hope helps her parents treat animals of all shapes and sizes. Even outside the clinic, Mandy can't resist helping any animal in need. When Mandy's dad diagnoses an Old English sheepdog puppy as deaf, Mandy feels sorry for it. But it isn't until she finds another sheepdog puppy weak and abandoned that she and James begin to get suspicious. Could a local breeder be mistreating these poor puppies?"--P. [4] of cover.

Can Mandy rescue a lost puppy from the dangers of the big city?