For 140 years, Nathaniel Cade has been the President's Vampire, sworn to protect and serve his country. Cade's existence is the most closely guarded of White House secrets, a superhuman covert agent who is the last line of defense against nightmare scenarios that ordinary citizens can only dream of. When a new outbreak of an ancient evil--one that Cade has seen before--comes to light, Cade and his human handler, Zach Barrows, must track down its source. To "protect and serve" often means settling old scores and confronting new betrayals--as only a centuries-old predator can.