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Hooray for the holidays!

No more getting up early and doing homework every day! Amy, Flora, Fau and Franek go to the village of Frog's Horn to visit Amy's grandmother. The summer in the house by the river is wonderful: they can have fun in the garden, go blueberry picking, build a hut and go horse riding. But there are no holidays in the Secret Club of Supergirls! After all, books are disappearing from the Frog's Horn library. I wonder if it was the book-eaters who did it, or if someone deliberately decided to harm the library? Our friends are on the case!

Will they be able to solve this mystery as well? Read in the fourth part!