Das fehlende Zimmer
This guest is lucky enough to have the only room that doesn’t seem to exist. Or should there be some trick to get to this one. Kind of like in “Harry Potter”, where you can only reach the “Nine and Three Quarters” platform via a pillar. Maybe with a bit of skill, the magical space will reveal itself. You just have to believe in it.
Just for information: card keys, which are available in many hotels today, have a magnetic layer that contains the hotel guest’s most important information. The door lock is triggered once the sensor verifies the magnetic stripe. This is now one of the most practical inventions in recent years in the hotel sector.