Welcome to Mundus Naturae! After Robyn is kidnapped, she slowly gets to know the new dimension with the help of twins Shelly and Isabella. Fear and overwhelm characterize her days, as there is a brutality here that is completely foreign to her. Why was she chosen of all people? The strange creatures seem to be targeting her, even though she can't even fight. Just when she thinks she can slowly begin to trust the twins, she discovers more dark secrets. But there is little time for questions, as the threat of another attack is ever-present. The danger seems to be growing, and the young women carry a heavy burden—they are supposed to save humanity from its demise.