The numbers that Harry and Anna found in Anderson's car are a mystery. The time warp team seek out Anna's friend, Edgar. He's a mathematician so maybe he can help. At first, he also can't make heads or tails of them.
Click on the links below. You'll be guided to the corresponding episode, which you can download, and to the "Harry – gefangen in der Zeit" start page. You'll find 100 animated stories, 400 interactive exercises, over 3,500 spoken vocabulary words, a vocabulary trainer, and much more.