I want them.
And they're on their way =)
From the author's website...
Turned into a blood-drinking abomination in 1867, Nathaniel Cade was offered a choice by President Andrew Johnson: serve the United States, or end his unnatural existence. Cade has served every president since, he is the most closely guarded of White House secrets: a superhuman covert agent who is the last line of defense against the nightmares that threaten the American dream.
From what I understand, Cade is supposed to be a badass vampire. Which is just how I like 'em!