The Doxson House is the ultimate challenge. Explorers, both independent adventurers and mercenaries sent by various groups, are common, Housers have various towns and cultures inside. Laws aren't really enforceable in the house. The House shifts layout constantly. It is opulent, monolithic, larger than any city. There are defenders within; androids, all female, the central ai Diamond; who guards her former master's treasures jealously, and genetic experiments ranging from almost human to not.