In the heart of Panama, a volcanic lake feeds a serpentine river—its stone banks laid by the Inca, who took back the gold and jewels plundered from them by the conquistadors. Legend has it that the Twice-Stolen Treasure has been buried for...
An exciting new adventure for Doubleday — introducing #1 New York Times bestselling coauthor Jack Du Brul, and his erudite geologist with a special taste for international intrigue, Philip Mercer.
Sinking thousands of feet below the surface of...
In the tiny African nation of Eritrea, the American spy satellite Medusa has crashed but not before its sensors revealed an underground kimberlite pipeline, the telltale sign of a huge load of diamonds. The mine turns out to be King Solomon’s...
The seventh Oregon Files adventure thriller begins on December 7, 1941, when five boys encounter tragedy while looking for buried pirate treasure on a small island off the coast of Washington State. Flash-forward to today: Juan Cabrillo, captain...
It begins deep beneath the Pacific Ocean, where a nuclear bomb strikes at the fiery hot heart of the earth. Churning, spewing boiling lava, a volcano rises with unnatural speed from the ocean floor — the source of a new mineral that promises...