As an adherent to the lost continent theory, I very much enjoyed this book. Although one of Collyns' more hard to swallow works it is an excellent start for any one who thinks that our world has been visited and ruled by space travellers in ancient history. The prevailing theory of this work is that most modern diseases such as cancer or influenza, are actually remnants from ancient biological warfare that decimated the earth's ancient but highly advanced civilisations. You would think that is rather fantastical at first read. But when you consider that astronomers and scientists are coming agree that our existence may have stemmed from the organisms that could be found on comets than Collyns theory is not so odd. This book is a must for any Collyns fan.