Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What if?! Page Turner!

This was a great book to wet the appetite of ancient What-ifs. The author does a great job in linking ancient mythology, geology, animal extinctions and astronomy into a very probable scenario.In all this was a great page turner that feels like a well written historical account of cataclysm backed by evidence. It is not too packed with data to feel like a geology textbook. Also not being to dreamy like a UFO chaser. Why only 4 stars? I felt that the last few chapters were a little rushed and mostly speculation, but what else is there to go by? I would have liked a little more images, diagrams and something make it just a little more evident. Next I am reading "Cataclysm" by D.S. Allen and J.B. Delair for a little more scientific evidence of all those bone-caves that Vitale wrote about.Thank you for your great chase through ancient history Joseph!