On the eve of a lunar eclipse, you decided to break into the local observatory and look at some data that interested you. No one is allowed into the building, but you managed to get in at the end of the working day when no one was there. You are very lucky, the door was unlocked. But while you were out looking, one of the workers came back and locked the door to Escape from a Certain Observatory. You are trapped and must get out immediately. If you are caught, there will be a scandal. Search all the rooms, maybe a spare key is hidden somewhere and you can use it to open the door to Escape from a Certain Observatory.