A map of Crescent, notably the central sea ports that are starting points for tragically but predictably doomed upriver expeditions.
Here you'll find a list of the various sentient species that inhabit Crescent. Given the dangerous environment, all sentients get along, until they don't.
Crescent is a hellhole terrorised by these ravenous creatures. Inform yourself as to which will likely be eating you.
Biologists are the most dangerous creatures on Crescent. It's mostly them what lead naive youths astray into exploration.
Crescent has a long, contentious history which has little do with the fabrications you can find here.
Lists of cities and regions of Crescent. One is as bad as another. Wanting to see them will just get you horribly killed.