A national treasure hunt with a $2 million prize has driven obsessed fortune seekers to overrun the small town of Eagle’s Nest, Oregon. The hunt’s cryptic clues and the lure of wealth have exposed the desperate side of human greed: theft, fights, trespassing—and even the motive to kill. Police chief Truman Daly craves peace in his town but has a murder on his hands instead. Now the big prize isn’t the only thing hiding in the pines. So is...