Vampire Midnight. Kelly Chan, #1

Kelly Chan, the magically engineered assassin from the Jonathan Shade series in her first solo adventure!Picking up a package for a friend should be easy, but when the package is at Tally's, a shop that caters to things that go bump in the night, and that package is a woman, things can go south fast. Of course, if the person picking up the package is Kelly Chan, when things go south, bad guys die.
But what happens when the bad guys are already dead? Or more specifically, undead. Kelly finds herself face-to-face with an actual vampire who has the power to issue commands Kelly has no choice but to follow. So how do you kill something when you've been commanded to protect it?