Now the battle lines are clearly drawn, and more than half a dozen plot lines are charging ahead as humanity's galaxy-spanning culture faces a terrifying revelation: souls of the dead are returning from the beyond to possess the living. The living, though competent and brave in the best science fiction tradition, must contend with history's greatest generals and leaders, as well as some unexpected champions. Al Capone, it seems, makes an excellent interstellar emperor. How do you fight an enemy whose every soldier is also a hostage and who, if killed, will simply return to possess someone else? The dilemmas are not just technical, but moral, as people face the first real proof of life after death.