Grey City

The Grey City(a.k.a. Twilight Domain, Silver Nostris) is a twilit version of Nostris Lux located in the feywild. The buildings are replaced by giant, twisted dead trees. This city can be difficult to remain in as the confusion and loss of sense of direction created by the fey inhabitants tends to lead visitors out of the city quickly. This version of the city is actually enclosed within its own pocket of the feywild, and wraps around on itself, making it impossible to actually leave while in this city. Flowing from the Tower are streams of grey water that is able to pacify fey creatures and is incurably addictive to mortals. Changeling Parasites are found here, growing from the trees. A variety of other fey live in the Grey City, but none are native to Nostris Lux. Most of the city's changelings know of the Grey City and can navigate it without penalty.

Navigating the Grey City
The Grey City has an aura of confusion saturated throughout. Any non-fey, non-Midwife creature in the Grey City must make a DC 10 wisdom saving throw for every hour of travel in the Grey City. If a group is travelling together, only the leader or navigator must make this saving throw. A group lead by a fey creature is immune. Upon failure, the creature or group will become lost and find themselves in a different Version of Nostris Lux.

Effects of the Grey Water
Consuming the grey water by any non-fey creature has a chance to create a lasting addiction. Immediately upon consumption, the imbiber must make a wisdom saving throw of 30 to resist addiction. Upon success, the imbiber becomes immune to any effect of the grey water and gains advantage on wisdom saving throws against fey creatures or spells. Upon failure, the imbiber becomes addicted and all of their stats will decrease by one point for every day they go without consuming at least a liter of the grey water. One Liter of grey water will remove one point's worth of this penalty The imbiber may make a wisdom saving throw with a DC of 18 once per day when they drink, until they succeed. Success increases the time they can go without drinking the grey water to one week. Similarly, DC 20 wisdom saves may increase the time to one month. After consuming five liters of the grey water, the imbiber gains Fey Affinity.

Fey creatures who imbibe the water must make a DC 14 wisdom save or fall asleep for 1d4 minutes. They can be woken normally and suffer no lasting detriment.