Can't kill mortals

Bob's eyelights narrowed until they almost went out, then brightened again after a moment, as the skull began to speak. "A Sidhe Knight is mortal," Bob said. "A champion of one of the Sidhe Courts. He gets powers in line with his Court, and he's the only one who is allowed to act in affairs not directly related to the Sidhe."
"Meaning?"
"Meaning that if one of the Queens wants an outsider dead, her Knight is the trigger man."
I frowned. "Hang on a minute. You mean that the Queens can't personally gun down anyone who isn't in their Court?"
"Not unless the target does something stupid like make an open-ended bargain without even trying to trade a baby for - "
"Off topic, Bob. Do I or don't I have to worry about getting killed this time around?"
"Of course you do," Bob said in a cheerful tone. "It just means that the Queen isn't allowed to actually, personally end your life. They could, however, trick you into walking into quicksand and watch you drown, turn you into a stag and set the hounds after you, bind you into an enchanted sleep for a few hundred years, that kind of thing."


Summer Knight Chapter 10, Page 130-131