Once upon a time there was a prince who wanted to marry a real princess. He travelled all over the world to find one, but had no luck.
One stormy evening, a woman knocked at the city gate. The rain and wind made her look quite a mess, but she said that she was a real princess.
"We’'ll soon find out," thought the queen. She went into the bedroom and put a pea under twenty mattresses and twenty blankets.
The next morning, the princess exclaimed, "I couldn’t sleep! There was a huge lump in my mattress!” Only a real princess could feel a pea under twenty mattresses and blankets, so the prince immediately married her. The pea was put in a museum, where it can still be seen, if no one has stolen it.