The capital city of Shadow Tamyr is Dumuzid. Lush valleys a river runs through, but otherwise - desert and steppes. A nomadic empire to the North - seal-hunters who may be as likely to ride mammoths as horses - an opulent/agrarian empire to the South, monument-builders, wild manticores and a center of learning respected throughout the Golden Circle (even if some of the sciences don't seem to 'work' in shadows closer to Amber/in Amber itself. The philosophers of Dumuzid have written about Amber as the Alchemical City, the True City which every kingdom might eventually become if it perfects itself. There is also a minor belief that Amber might be the City of the Dead, and its royals are angels, and when one dies in Tamyr one is reborn in Amber unless one goes to Hell, then one becomes a shade in Amber's moon city.)

Think Ancient Nubia/Ancient Mesopotamia, but with 17th century tech and industry. The ruler of the Dumuzid is Khalil, youngest Emperor in memory at 25. The ruler of the People of the Mammoth is Ajeela, Queen. They treat differently with other Golden Circle powers and it is often tricky to get something from one if you are already dealing with the other.

Tensions typically between: Regata, Aragon, Kashfa, Ulster, Løvetann
Typical alliance when in Amber: Deiga (No, what? Deiga? Who cares about Deiga, f' Deiga), Begma, Ilyria, Aragon (yes, it's on both lists)