Books with title Petie: Just in Time: The Case of the Feverish Pup!

Petie deVet continues to inspire in this "classic Petie" installment. Will Petie be able to single-handedly hold down "the fort?" That is, the snow fort, when the vet clinic is snowed in for ten whole days during the blizzard of the century! Will John Stock help? What does Mrs. Li, the parakeet, think of John Stock's attitudes?