Brigid Lucy tries to be good, but it doesn't always work. This could be due to the invisible imp hiding in her hair. When Biddy's pet slug dies in tragic circumstances, Dad promises to buy her a new pet. But Dad is allergic to almost every pet in the shop! Things get even worse when the invisible imp in Biddy's hair decides to get involved. She can't help but encourage Biddy into trouble.
Brigid Lucy wants a pet, but her Dad is allergic to pet hair? So what kind of pet can Brigid Lucy have? I read this story to my daughter and while the language was needlessly babyish, the mayhem and chaos that follows Biddy, from the pet shop to the vet's office, is quite fun. Parental behaviour and frustration in Biddy's family is somewhat realistic - oops! Recommended reading age 5-8 years.