The Twilight Herald
Consisting of a flat disc of 300-mile thick water with a single mountain in the center, this world looks like a giant wagon wheel, with the Spindle (the mountain) always pointing directly at the sun. Near the base of the mountain, six ports, each owned by a different type of Beholder accept Spelljamming traffic from other beholders (not ones who live on H’Catha as that would provoke a war) and a mysterious humanoid race. Other species are only allowed to land if they have goods to trade and leave as soon as they are done. The world is orbited by two satellites, Turnbetl and Lumbe.