Invisible Pets Magic Picture Book (Dover Little Activity Books)
What water-loving animal — a favorite with youngsters at home and in the classroom — carries its home on its back? And what creature gets lots of exercise by running in a wheel in its cage? To learn the names of these and 14 other "invisible" pets, simply rub the blank space on each page with the tip of a pencil and make the answer "magically" appear. A brief caption identifies and provides information about each animal.
