Double Eagle mystery

Just read a book called Double Eagle by Thomas King. It is part of the Dreadfulwater mystery series. A good read for numismatic  enthusiasts. It revolves around a coin show and dealers in high value gold coins. It gives a bit of history around why the coin is so valuable but the mystery is who killed the dealer and why. Full of dry wit and humour from Thumps and his sidekicks. Give it a read if you can find it. I use the library so no cost for me.