This is the second book of this author, his first book is the classic "Colony: Earth", in this second installment the author gives more details about the enterprise of the alleged extraterrestrials who were our forefathers, he focuses on certain aspects, such as the Nephilim, or the remains of a nuclear war in the Indus valley and the passage as stated in the Mahabharata, this book also divulged a lot of the data collected by Don Wilson in his brilliant books about the moon, relating to all the anomalies found on the Moon, therefore the marks of an interplanetary civilization. Also, the knowledge scattered around the world are coincidental, so the Mayas and the Babylonians have a lot in common in their astronomy. It is a great read, as the author is a gifted writer.
Enjoyable enough if read as Vernian type fiction. It was a plausible theory in the 19th century perhaps, but evolutionary biology and dna wholly disproves what this book puts forth. I still loved both his books on this idea though.
Contains some interesting concepts, you can tell it was written in 1975 though. I would be interested to see if he wrote anything more recently on this subject