Best of
Sword-And-Sorcery
1989
The Enemy of My Enemy
Mercedes Lackey - 1989
Clan Skaht of the Horseclans came to raid, but was deterred by the peace-banners. Then the son of the local king decided to promote himself, by patricide and regicide, and everything changed.Originally appeared in the anthology Friends of the Horseclans II, was collected in Fiddler Fair, which was omnibused as Dragon's Teeth.