The Treasure Hunters Secret Manual--Discovering Treasures Auras in the Digital Age--by David Villanueva

This is an excellent book that can open your eyes to a completely new concept in Treasure Hunting.  David has discovered that Buried Treasure such as gold and silver gives off a Treasure Aura which can be captured and photographed.  The book details his exact method so you to can duplicate his results.

This just may be the ticket that helps you recover your first cache or helps you recover that cache you knew was at a location yet you could just not solve the puzzel which would enable you to go all the way to make a recovery.

I would highly recomend this book.  Certainly David has given the professional treasure hunter a new and reliable tool to enable him to make those recoveries.