Ozzie and Tonk are going on a trip again! On a ship to Germany. But then the ship sails in the wrong direction. What is going on here? Join them on their adventure in this book at AVI M5. Ozzie and Tonk are traveling by ship. They are sailing along a river in Germany. Then they notice that the ship is heading in the wrong direction. In the middle of the night, someone keeps turning the ship around. The captain says it wasn't him. But who was it then? Ozzie and Tonk set out to investigate… Going on vacation is going on an adventure, at least, if your name is Ozzie and Tonk! In every book, the friends discover a different country. This time they are going to Germany. Not in a car, but on a ship. Together they sail along the impressive river. At night, when everyone is asleep, something strange happens. The ship sails in the wrong direction. Have the other passengers noticed it too? Ozzie and Tonk are going to solve the mystery … Readers are introduced to other countries and foreign languages in the travel-filled books of Ozzie and Tonk. The books in this series let you dream away for a moment; it is just like being on vacation yourself! In every book, the friends solve a riddle. Especially for real detectives!