Haven't read it but I did check out a summary.

I'm sure there's plenty of fact in the book, however I'm not sold that the 8th century Khazars are the root. If they were the root, Christ's teachings wouldn't have been assaulted by Rome in the way they were. Roman hegemons were host to Luciferian forces long before the 8th century.

The best timeline I can put together has the Luciferian influence coming to Earth around 75,000 years ago.