(Winner of the 2011 Independent Publisher (IPPY) Gold Medal in the Mystery/Suspense/Thriller Category) When the body of 17th-century mapmaker Johannes Cellarius floats to the surface of a bog in northern Germany with a 57-carat ruby clutched in his fist, the grisly discovery ignites a deadly 21st-century international treasure hunt to unearth the fabled Tavernier stones. The hoard reputedly contains some of the world's most notorious missing jewels, including the 280-carat Great Mogul diamond and the 242-carat Great Table diamond. John Graf, a scrupulously honest Amish-born cartographer, teams up with outlaw prospector and gemologist David Freeman in a ferocious race against fortune hunters, opportunists and criminals to find the treasure and break a secret code that will unravel the centuries-old mystery.
"The author clearly knows his subject—the details about map-making and gemology ring true—and even better, he knows how to tell a good story."—Booklist