Viborg is a city in Denmark. It is an old city, but it has only a few old buildings. A great fire destroyed most of the old town in 1726.
Mr. Anderson was writing a book on the history of Denmark. He went to Viborg in 1891.He wanted to study the history of the town.
He stayed in an old building in Viborg--- the Golden Lion Inn. The inn was nearly 350 years old.
Anderson asked the land-lord for a large room. The landlord of The Golden Lion showed him two rooms--- room number 12 and room number 14. There were three large windows in each room. The windows looked onto the street. Anderson chose room number12.
In the evening, Anderson went downstairs for supper. He saw a blackboard. The names of all the guests were written on the blackboard. Anderson saw that the inn was full. There were no empty rooms. Anderson noticed that there was no room number 13.
Thirteen is an unlucky number. Many people do not want to stay in a room with an unlucky number.
When Anderson went upstairs to bed, he tried to unlock his door. It did not open. Then he saw that he had made a mistake. It was the wrong room. The number on the door was number 13.