Megan has vanished without a trace. Her older brother Noah is determined to find his sister. A message delivered by a peculiar little bird leads him to the Clarksville Zoo. There, Noah and his friends Ella and Richie discover more mysterious messages from Megan's diary. With the help of the polar bear Blizzard, the penguin Podgy, and other animals, the children uncover a fascinating magical world. Together, they embark on a grand adventure to rescue Megan. The book of the same name, translated from English by Leonard Thamm, has been published by Rowohlt Verlag in the rororo rotfuchs series.