Ten-year-old Kaya doesn’t know that she is an Avanost until one day a distinguished old lady appears, places a beautiful medallion around her neck, and she suddenly transforms into a bird. For Kaya carries an ancient magic within her and can use the jewelry to switch between human and bird form. From that moment on, Kaya's life is turned upside down. She must not only learn to navigate her new identity as an Avanost, but she also discovers that the future of the Avanosts is at risk. Their leader, Xaver Steinadler, is pursuing dark plans and has already acquired an important element for this: the magical feathers. Kaya must retrieve them at all costs. The mysterious Milan from her school wants to help her – but can she really trust him? Atmospheric, thrilling, magical – Nelly Möhle takes us into the fantastic world of shape-shifting birds.