Sofie Anna Švehlíková

Best friends Bětka and Alma are spending a dull summer at a lakeside with Bětka’ s older sister Marie. The teenage girls want to experience something big but their efforts fail until they discover a mysterious pool on an island.

The story focuses on a special unit of Czech intelligence, known as the Extraktoři (Extractors). The unit operates in secret and its main mission is to ensure the safe return of endangered Czechs from abroad. The story offers insight into the world of espionage and international covert operations and is inspired by true events.