John and his little sister, Sally, are going to have a very big surprise soon. Since a few days ago, mum and dad have been preparing a large aquarium with several gadgets. Mum has only given them one clue: It's an animal with a shell. Sally tries to guess what it might be: maybe it's a turtle? Adopting a pet is a very exciting event for children, but it also brings serious responsibility. This book teaches how to handle a turtle without harming it and advises on how to keep it safe. It also includes activities and a special guide from the vet to learn how to take care of a turtle.