Sheldon is an ordinary student at a good European university. He spends his free time reading classic English poetry. He was very fond of the Middle Ages. One day he spent a long time in the library, even dozed off. He woke up with his face on a book of Byron. But he felt a kind of chill. The cold wind made his feet shiver a little. He decided to follow the wind. The wind came from the ajar door between the bookcases. He opened the door; it was very dark. He wanted to go in to turn on the light. He took a step and began to fall down into the darkness. He fell for about 20 seconds, he didn't have time to lose consciousness. Suddenly the darkness ended and he landed on a very soft haystack. There were woods all around, and in the distance he could see the light in the windows of a large stone castle. It won't be easy for Sheldon, because the Middle Ages aren't only poetry.