The Demon Crown

A construction project beneath the National Mall uncovers a long-buried Civil War secret—a cache of amber-preserved bones that hold the key to life after death—setting off a race against a returning ancient horror. As the threat spreads across the globe from Mount Fuji to Hawaii, Sigma Force must confront a formidable menace that has the power to reclaim the world, forcing Commander Grayson Pierce to make daring alliances and difficult sacrifices to stop it.