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 Use that can be found with creature descriptions in the official books, can be used as adventure hooks or as simple misinformation.

1. A band of chirogs is apparently ambushing travellers and demanding that they hand over any numenera in their possession for destruction. Those who refuse are attacked and the numenera taken from their corpses whilst, oddly, those that agree are more often than not allowed to go on their way, which is not how chirogs normally behave.
2. Abykoses are creatures that look like ghosts, and are considered to be such by the majority of people. The beings are usually not aggressive in nature, but under certain conditions they can be. It’s rumoured that some abykoses are far more aggressive than others, and that this doesn’t appear to be related to the normal conditions for such happening. It’s said that there is a pack of marauding abykoses that travel around leaving destruction in their wake.
3. Aneen are herd animals that are often domesticated and used as mounts or pack animals. The beasts are omnivores with tiny forelimbs and small claws, neither of which are much use, but there are rumours of larger, significantly more dangerous aneen with larger, stronger forelimbs and claws and a nature that is significantly more carnivorous.
4. Broken hounds are a danger to those who travel through their territory, attacking in large numbers, and they prove impossible to reason with, acting only out of hunger. Yet there are rumours of packs of broken hounds behaving with far more intelligence and cunning than would usually be the case, leading some to wonder if they could be under the control of numenera.
5. Caffas are immune to the effects of wind and other air-based attacks, and have no problems with flying in strong winds. Some swarms are rumoured to follow storms, using the high winds of the storm as a way of partially defeating those they attack before they even strike.
6. Callerails, when two of them encounter each other, fight to the death, each attempting to absorb the inorganic parts of the other. There’s a rumour that a truly enormous callerail has been seen, one which looks as if it may have successfully absorbed the portions of several others and grown significantly as a result.
7. Dark fathoms are incredibly dangerous machines of war that anyone with sense would leave well alone. There’s a rumour, though, that a Nano with more ambition than sense is hoping to capture a dark fathom and control the creature to use against their enemies, and are looking for people willing to help them capture one.
8. Most cragworms dwell in abandoned and isolated areas, but there are rumours of a smaller variety that can be found living beneath cities, particularly in old passages, and in other underground areas. Though these may not be as dangerous as a normal cragworm, due to being smaller, the small spaces in which they are found can make them difficult to avoid.
9. There’s a bounty on the head of culovas living in the Westwood, due to the beings disrupting the local logging trade. It’s rumoured that the culovas have started to act more aggressively against interlopers as a result. Instead of remaining on familiar ground as they normally do, some say the creatures are instead venturing further afield and initiating combat pre-emptively.
10. Though blood barms are not usually aggressive unless they or their young are threatened, there are rumours that sometimes blood barms who are raising young can become very territorial. In such a case, the blood barms stake out a section of land and will viciously attack anything that moves into it, continuing with such behaviour until the young are grown enough and the blood barms move on.

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