Numenera is a game published by Monte Cook Games. Its setting is the Ninth World, and this list has ten rumours for that setting. The rumours, which are similar to the Hearsay that can be found in the official books, can be used as adventure hooks or as simple misinformation.

1. Few of those who stumble across the University of Doors through one of its portals are allowed to actually enter and study at the university, not even allowed inside the chimerical gatewall that surrounds the place. It’s rumoured that the percentage has been gradually reducing over the years, which may suggest that the number of people finding the university is increasing, but the number considered suitable students is not.
2. Just as the Hinge Lab separated from the Science Lab in the University of Doors, there’s a push to create other labs for the other different elements of a door. So far, this hasn’t got anywhere, as it’s stated to be needless complication, but that hasn’t stopped people from trying.
3. Living passages, including some that are sentient, are studied in the Atrium in University of Doors. Some postulate it may be possible to create an entire, living, network of passages to wrap around the Ninth World, and that this network could also become a vast intelligence. Others agree, but state this sounds like a very bad idea.
4. Sajeen Dar is the current headstone of the University of Doors and is coming to the end of his ten-year term. Former headstones can go through one final door; after which they may never go through a door again unless invited to do so by the holder of that door, or be hunted down and killed by the gibbs. It’s rumoured that this headstone is trying to find a way around this, and has been lavishing money and resources around secretly with this aim.
5. The Archivolt is a flock of mechanical birds shaped like keys that fly around and through the doors in the chimerical wall that surrounds the University of Doors. The Archivolt appear to take pleasure in harassing would-be students, and there’s a rumour that, if a student is utterly unsuited, the Archivolt may turn violent.
6. The End of Doors is a building on the campus of the University of Doors that has only one, simple door and contains an empty space without doors, given students and staff a break from doors. There’s a rumour, though, that the empty space is itself a type of door, a very unusual one that is difficult to open.
7. The locked passageways, often called diums, through which prospective students may reach the University of Doors, can be found anywhere in the world and made of anything. There’s a rumour that, sometimes, what appears to be a dium is something different. It provides access to another location; this is not the university, however, but a far darker place.
8. The Science Lab of the University of Doors has an infamous recent history involving an exploding double-door. Rumour has it that this explosion wasn’t simply the result of an accident, but that someone deliberately sabotaged an experiment, for an unknown reason, to cause it to fail dramatically.
9. The University of Doors is located in an alternate universe, but its actual location is kept secret, including from the university’s students and staff, with access through doors hidden around the world. There’s a rumour that, over the years, more than one person has attempted to find the university’s true location. It’s said that those that try eventually walk through a door but fail to come out the other side.
10. Those who wish to enter the University of Doors must solve a puzzle given by the Archivolt, which gives them a clue as to what they need to create to enter. There are rumours, though, that the Archivolt sometimes gives out clues that, if solved, do not open a door to the university, a way of weeding out those who are considered unsuitable, not merely for the university, but life itself.

Want some items that could be used as oddities? Check out 100 Xenoarchaeological Finds.