After being murdered by a mystery assailant, navigating his way through the realm between life and death, and being brought back to the mortal world, Harry realizes that maybe death wasn't all that bad. Because he is no longer Harry Dresden, Chicago's only professional wizard. He is now Harry Dresden, winter knight to Mab, the Queen of air and darkness. After Harry had no choice but to swear his fealty, Mab wasn't about to let something as petty as death steal away the prize she had sought for so long. And now, her word is his command, no matter what she wants him to do, no matter where she wants him to go, and no matter who she wants him to kill.