 They then see their patient and observe his strange behaviour – sitting hunched, without speaking, then stretching and yawning and drinking a cup of milk without using his hands.After dinner that night, Carstairs hears a cat meowing, and this sound is repeated during the night outside his bedroom door, but he is unable to find the animal in the house.The next morning he does spy the cat from the bedroom window as it walks across the lawn and straight through a flock of birds which seem oblivious to its presence.