Knight purpose

I gave the skull a sour look and recovered my pencil. "How much trouble am I in?"
"A lot," Bob said. "The Knights are entrusted with power by the Sidhe Courts. They're tough."
"I don't know much about them," I confessed. "They're some kind of representative of the faeries, right?"
"Don't call them that to their faces, Harry. They don't like it any more than you'd like being called an ape."
“Just tell me what I'm dealing with."
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."
"I guess it was too good to be true. But my point is that if Reuel was the Summer Knight, Mab couldn't have killed him. Right? So why should she be under suspicion?"
"Because she could have done it indirectly. And Harry, odds are the Sidhe don't really care about Reuel's murder. Knights come and go like paper cups. I'd guess that they were upset about something else. The only thing they really care about."
"Power," I guessed.
"See, you can use your brain when you want to."
I shook my head. "Mab said something had been taken, and that I'd know what it was," I muttered. "I guess that's it. How much power are we talking about?"
"A Knight of the Sidhe is no pushover, Harry," Bob said, his tone earnest.
“So we're talking about a lot of magic going AWOL. Grand theft mojo." I drummed my pen on the table. "Where does the power come from originally?"
"The Queens."
I frowned. "Tell me if I'm off track here. If it comes from the Queens, it's a part of them, right? If a Knight dies, the power should snap back to the Queen like it was on a rubber band."
"Exactly."
"But this time it didn't. So the Summer Queen is missing a load of power. She's been weakened."
"If everything you've told me is true, yes," Bob said.


Summer Knight Chapter 10, Page 130-132