The Artifact Stall always generates here and nowhere else. It sells the Ankh, which is necessary to reach The City of Gold. Keep in mind that the Ghost will appear on this level as usual; do not spend too long robbing the shopkeepers or gambling. Visiting the Black Market will prevent the random generation of shops for the remainder of the game, so be sure to stock up on everything you think you may need. If you pass on an item, your only hope of getting it later is to find it in a crate.