Sothis is a High Magick, urban, maritime campaign world of politics, trade, pirates and secret societies. Densely populated port city/states form networks of ever shifting trade alliances, while trying to fend off the pirate bands who ply the sea lanes. Humans, Elves, Dwarves, Tieflings and even Yuan-Ti and Lizardfolk work and trade together. Powerful Guilds of all sorts vie for power in the council halls and marketplaces. Magick is commonplace, with whole cities having been carved by Arcane spells from the living rock.