Men of Letters Clubhouse
The Men of Letters Clubhouse is located in Lawrence, Kansas. It appears to have been abandoned since the Men of Letters were wiped out in 1957 by Joan Hopkins. The Clubhouse is opened by a key (with an anti-possession charm attached to it) that John Winchester was given, along with a letter from his father on where to locate the clubhouse.
The main room contains filing cabinets, personal lockers, a pool table and books. Below the clubhouse houses different rooms as well, such a medical lab where the Men of Letters would go about performing experiments on monsters.
John Winchester is handed a letter from his father by an unknown man that directs him the Men of Letters Clubhouse in Lawrence, Kansas. Mary Campbell is there too, having been directed to retrieve a schematic related to the Monster Box by her father. The letter John has contains a key that opens the door to the warded facility. Inside it is obviously the place has been long abandoned. Mary finds the file she is looking for and John finds his father's locker with some possessions in it. Later Ada Monroe will tell them that all the Men of Letters she knew disappeared 15 years prior.
Ada discovers another room in the clubhouse.
- Although not mentioned, the clubhouse is actually most likely a Men of Letters chapter house of which there are stated to be many all over the place. Chapter houses previously appeared in 10.19 The Werther Project and 13.17 The Thing with the former being an actual house and the latter taking on the form of an underground bunker.