 Tristan gets a visit from an old school friend, St. John, a bon vivant whom Sigfried took a dislike to long ago. Tristan can t bring himself to tell Sigfried he is staying at Skeldale House and as a result, he must also keep it secret from Mrs. Alton. Mrs. Donovan is again dispensing veterinary advice to all who will listen. Tristan is smitten - yet again - with a lovely client, Rosemary Brocklehurst, who has a sick tortoise.