This utterly enchanting lift-the-flap book has the kind of disarmingly risque humour and charming characters destined to make it a classic. Much laughter is guaranteed, as you lift the flap to see what's happened in the nappy! Perfect for potty training, counting (!) and giggling. It has an extra thick, durable cover and pages. Mouse is tremendously curious. He has to investigate everything around him. And Mouse's friends don't escape his inquisitive nature. Mouse wears a nappy, and naturally he is curious about theirs So one by one, Mouse asks his friends Rabbit, Doggy, Horse and others, 'What's in your nappy? Then, of course, they ask Mouse the same question - but they're in for a surprise, because in Mouse's nappy is nothing! He's learnt how to use a potty, and on the final spread all his friends try it, too (on their own potty).