Annabell, Lara and Maya are "The three Girls" - best friends who plan to build a magical hut, just for fun, to see what happens. But the goddess of the forest thwarts their plan and opens a gateway to a hidden world. 210 years earlier, the explorer Alexander von Humboldt had inadvertently transported an invisible people, the Tamanaken, from the Orinoco across the ocean to his castle in Berlin, where they had built their new world. Plans and destinies converge in the Humboldt Grove. The showdown takes place at the Great Festival of Rachmakud, where a world rises that no one could have anticipated. Mysterious. Intertwined. Astonishing.