My son (7) is reading his wasy through all the Diary of a Wimpy Kid books. He is an able reader but quite reluctant (extremely frustrating for his librarian mother :0 ) and likes books to be heavily illustrated; he also loved the Ottoline books but unfortunely there is still not sign of a third one . I tried him on Hugo Pepper but he said it was too long (we get that a lot). Any suggestions on similar books? I am going to get him some Horrible Histories books but would like him to read some fiction too. Any help appreciated!