If the Hat Fits (Miss Bunsen's School for Brilliant Girls, Bk. 1)

Best friends Pearl, Millie, and Halinka love Miss Bunsen's School for Brilliant Girls, so they are horrified when they discover it may close down. Winning an interschool invention contest might give Miss Bunsen enough money to keep the school open, and Pearl, Millie, and Halinka are sure that their invention will take first place.

The Best of Yourself Hat gives the wearer confidence, a better vocabulary, and perfect hair. But it's such a good idea that a rival school steals their design! Can the friends find a way to save their invention...and their school?