The History Press contacted me after their Northern California rep saw our advertisement for ghost tours. Their Haunted America series required a book pertaining to the California Gold Rush.
Situated in Placerville, the former "Hangtown" of the raucous gold discovery era it became a natural fit.
I am not a paranormal expert. Our tours, and now the book, heavily feature the historical aspect of the spirited past in the golden triad that also featured Coloma and Georgetown.
If you cannot buy it locally both Amazon and Barnes and Noble and other online outlets sell it.
Grab a copy and enjoy.