Like other reviewers I barely know where to start with this review; the book left me a little puzzled.
It starts off well enough, summarising Hapgood et all and the theories & evidence of ancient civilisations - all goood stuff but nothing new really.
Wilson then starts to meander off topic and heads into the Rennes-le-Chateau saga (to my mind this was put to bed when exposed as a hoax some years ago) and the divinity or otherwise of Jesus. admittedly there is a link at the end of this section - the hypothesis that ancient man recognised and utilised a "mystic landscape". This may or may not be so, but I felt the author wasted far too many pages on these subjects to support an idea that they actually have little (if anything) to do with.
The idea of "primal vision" is an interesting one, but unoriginal and unfortunately Wilson adds nothing new to the mix - although useful to those unfamiliar with the subject.
The biggest puzzle for me was that this book utterly failed to address it's title - no real explanation or exploration of Atlantis with the Neanderthals, bar a threadbare chapter towards the end that - again - offers little new information.
Overall this book is an interesting (if somewhat rambling) introduction to alternative prehistory, but those well read on the subject will find little of interest.
The books one redeeming feature though, is it's extensive bibliography via the author's notes.