Three religions, a polemic about faith, a lost people.

Perhaps this roughly summarizes the story of the Khazars: a seminomadic group who lived in southern Russia and then built an empire, Khazaria, which spread wide but was later defeated, wiped out without a trace, even of its language.

All that was left was scattered data that were probably no data at all, legends hidden within legends--which Milorad Pavi collected, or made up in his Serbian