Mr and Mrs Hay are a horse! Every day they climb into their horse suit (she's the back, he's the front) and perform at the circus. But as their children Henry and Henrietta grow up, their galloping parents begin to embarrass them ... Based on the classic `Happy Families' card game, this highly entertaining series is ideal for reading and sharing at home or at school. It is guided by the Education Adviser, Brian Thompson, and written by the award-winning author, Allan Ahlberg. `The best thing to happen to beginner readers since Dr Seuss' Children's Rights Workshop