When Tom gets a puppy he calls Spider, it changes both their lvies.

Tom finally has a special friend all of his own - which is just what he needs as he struggles with a difficult new school and trouble at home. And Spider has someone to love him. But the course of their love does not run entirely smoothly, as they embark on a gruelling journey of separation and reunion. 'Dog' is a book about trust, standing up for yourself, and learning to love.