Ask for the Ancient Path is an amazing, life-changing vision that takes you on the journey from before time to the end of this age. It shows how the jealousy of one angel forever marred the life of every angel and man alike.
I found the first couple of chapters thought-provoking, but lost interest early. The books value lies in that it shakes the reader out of a conventional view of the world. The book would be considered heretical in many circles.