Of course there a quest, and Chase Baker is on it. Here he is trying to find out about the youthful Leonardo and the cave that might be the answer to so many of his inexplicable discoveries. It was just another adventure in history until MI-16 wants to become involved. The story has all the requirements. Bad guys, secret societies, unusual government agencies. It is a Clive Cussler meets Dan Brown. This is a good read, even though some of the story becomes a stretch it still remains entertaining.
I was voluntarily provided this free review copy audiobook by the author, narrator, or publisher.