A new book to celebrate the twentieth anniversary of Good Dog, Carl . Carl is finally back! Once again, Alexandra Day has concocted a very busy day for the amazing and all-around resourceful Rottweiler Carl. His owner believes Carl is at home taking a nap, when really he’s making tracks all over town. He visits a bakery, makes a delivery for the pharmacist, helps out a veterinarian, and joins in a magicians act in the park. But in the most important event of the day, Carl becomes a real hero