Books with title Just Nuffin

The summer holidays loomed ahead, with nothing to look forward to except one dreary week in a caravan with only mum and dad for company. Roger was sure he'd be bored.But then Dad finds Nuffin; an abandoned puppy who's more a bundle of skin and bone than a dog. Roger's holiday is transformed and soon he and Nuffin are inseperable. But Dad is adamant that Nuffin must find a new home. Is there any way Roger can persuade him to change his mind?