When her adorable baby brother is replaced by an ugly, ill-tempered changeling, Mollie is determined to find the so-called Kinde Folke who took baby Thomas, return the changeling she calls Guest, and make them give Thomas back. Natural and magical obstacles and her own reckless temperament make her journey arduous and full of dangers, and a plot rich in surprises and twists makes this book a must-listen for Mary Downing Hahn's fans.