The bestseller in paperback: Ella and her friends love going to school because it's so much fun there. But what happens when the teacher wants to leave poor Pekka behind? Just because he can't do his times tables? He doesn't need them anyway, because he wants to become a superstar. When the teacher has such strange ideas, you have to do something about it, namely get the teacher a ship. He has always wanted to sail the seas. And when he's gone, he can't leave Pekka behind anymore. Makes sense.