This is an automatically translated description

Amy and the Secret Supergirls Club is the first book in a series by Polish writer Agnieszka Mielech about a curious six-year-old who loves mysteries. At pre-school, Amy and her friends found the Secret Club of Supergirls. What mysterious things can happen in the lives of preschoolers? Are the mysterious people at the airport so suspicious that the girls have to spy on them even at the opera house? The Secret Club is on the hunt for secrets, and if they don't exist, the girls invent them themselves.