While reading a resent article in the ANA's Numismatist or was it a Coin World, I so enjoyed the article that I checked out the author. It was James R. Clifford. I researched him and found he also wrote a novel. It's called Double Daggers. I read the book and highly recommend it. It's a great read when you want to stay in the field of numismatics but need a break from pure facts. In short, the story follows the path of the Eid Mar coin. Though fiction there is a lot of historic fact inside. You might give it a try.