Mandy Hope loves animals and knows lots about them too - both her parents are vets! So Mandy's always able to help her friends with their pet problems . . .
Mandy has lots of school friends with guinea-pigs - so many that they've formed a gang! No one understands why their classmate Lisa won't join in with her new pedigree guinea-pig. They think she's being snooty - but Mandy's sure there's more to it than that . . .
