Brigid Lucy tries to be good, but it doesn’t always work.
This could be due to the invisible imp hiding in her hair. Biddy is excited when she spots a real-life Princess Tower
from the window of the train. So is the invisible imp that lives
in her hair – it is going to lead to all sorts of trouble!
Mum says the tower is a cathedral, but what do grown-ups
know? When Biddy and the imp investigate further, they
discover that Princess Rapunzel is trapped inside the tower.
Can Biddy save the day?