Allergic Reactions When Sabrina doesn't have the time to finish reading the classic novel The Hound of the Baskervilles for her English class, she summons the main character and famous sleuth, Sherlock Holmes, to give her the 411 on the book. That's not cheating, right? Now Sabrina has plenty of time to focus on her animal communications class. It's so popular that even Salem's attending lectures! But when Sabrina's professor Dr. Cartwright brings his dog, Baskerville, to class for a demonstration, Sabrina has an allergic reaction and sneezes -- a sparkling, fizzing sneeze. Now Dr. Cartwright's barking in the lecture hall, and at home Roxie hisses like a snake and Morgan insists on eating only grains for dinner! Sabrina's off to the Other Realm allergist to run some tests before the Mortal Realm becomes the Animal Kingdom!