A pacy international thriller with a historical twist, from bestselling author Steve Berry. A secret group of political and economic leaders has joined forces with the former Soviet republics to create a devastating biological weapon. Whoever develops the cure would control the future of global warfare. Yet that cure may have been discovered centuries ago, and if so the clue to the location of the formula lies buried with Alexander the Great. Cotton Malone and Cassiopeia Vitt join the hunt for Alexander's tomb, which swiftly turns into a harrowing fight for truth that has unimaginable repercussions.