Domcur By Under A Bleeding Sun
The Tranquil Oasis was the only water source for the Barbarian Tribes, until the city of Simlarin diverted the Dutlin river through their city, which had the side effect of cutting the river southwardly. The Oasis is the one safe place in the desert, and there has been a known peace that one is not to shed blood there. Some tribes say it is the one place in the entire Shalstone Flats where blood has not been spilled.
Some more scholary folk might wonder how such a little oasis could support all the barbarian tribes for so long…