David Roberts and Alan MacDonald

Fleas!: Meet Dirty Bertie - a boy with nose-pickingly disgusting habits! He's full to bursting with madcap plans and crazy ideas, and if it's trouble you're after, look no further - Bertie's sure to be up to his neck in it. Join Bertie as he takes a flea-ridden Whiffer to the vet, does a naughty dare at school and gets a ride in shiny red fire engine!

Worms: Join Bertie as he tries to get out of a pink party, fails to be polite for a whole day and a makes really rubbish entry into the summer fair's flower arranging competition…

More revolting stories about the world’s grubbiest trouble magnet. Dirty Bertie faces the shame of losing a dare with Know-All Nick and having to wear his pants to school. Bertie drags a reluctant Whiffer to dog training classes, stink-bombs his sister’s sleepover and rebels against Miss Beansprout’s all-new healthy school dinners.