While digging up a withering wax myrtle tree beside his waterfront home on the Gulf coast, author Andy Andrews unearths a rusted metal container filled with Nazi artifacts and begins an intriguing investigation that unlocks an unspoken past that took place in his backyard . . . literally . . . . . . In the summer of 1942, as the country gears up for a full-scale commitment to WWII, German subs are...