It all began when a very strange man gave him a letter from his parents, whom he was sure were dead. Toby – his full name was Tobyas Thorsen – was thirteen years old, and not even in a dream had he thought that his foster-parents Hannes and Irmchen could have been part of a plot against him. Did they really want to give him shortly before his fourteenth birthday to a secretive stranger? He only just escaped from the planned kidnapping. During the adventurous flight which followed he got to know Tini, a girl of the same age, who deciphered for him a secret message containing the words "Lule´s End". In this way he reached Verbola, a land behind the Thought Horizon of human beings. After he had made friends with some of the Timers who lived there, both Toby and Tini discovered that "Lule´s End" stood for the last day of the month of "Elul" in the Jewish calendar. They soon realised that only a few days were left for them to free Toby´s parents and prevent a disastrous attack on Verbola...