Book excerpt: CONGRATULATIONS! You are now the proud owner of a pet dinosaur. Your new pet will need lots of love. She will also need training, exercise and (very) regular feeding. But having a new pet isn't all fun and games. It's hard work too . . . especially when your pet is a T-REX! A delightfully funny celebration of the joys and responsibilities of having a pet, from the creator of Tiger in a Tutu, shortlisted for the Waterstones Children's Book Prize