West of the lands of the Bo-Si and of the Thirty Six Tribes of the West lays a strange and exotic half-island known as Yi-Da-Li, whose people claim to descend from the fabled Da-Qin. The people of Yi-Da-Li are said to be so hairy as to resemble macaques, speak a language related to that of the Fa-Lan-Xi, and follow a heretical offshoot of Manichaeism. The Yi-Da-Li speak of a time when their ancestors ruled over a great khaganate comprised of all the barbarian tribes of the far west which warred often with the Hui-Hui and Bo-Si, but were cursed to be confined to their peninsula when they murdered a great shaman of their god named Yi-Shu.