The twenty first lines meme

[gryphonrhi]

What the hell. The (adapted) twenty first lines meme, since it looked like fun. The idea is to guess/remember which story goes with which first line and I added one extra, since the first line's a gimme. The first five people to guess more than ten right get to give me three words -- not names; seeing who turns up is half the fun -- for prompts for a short fic. (Okay, this is me; I'll hope it's short. Sometimes they aren't.) I'll do my best, anyway.

Yes, the first one is obvious, but I still love that opening line. Answers in a day or so. And the only hint I'll give is that this covers a wide swathe of my fandoms.

1. Gregor was fairly certain that Duncan would have mentioned it if he'd loaned him a cabin that came with a wolf.
2. The men involved were, when all was said and done, professionals.
3. The guy's barely shorter than I am, I doubt he's lighter, and I'm starting to think he's every bit as dangerous.
4. She killed her first man when she was thirteen.
5. Matthew McCormick studied the jail cell with a careful eye for the details.
6. "I need a vacation, you said."
7. The ticking of the clock drew him up the first time, aggravating him with the irregular beat -- or he was fading in and out?
8. Her face was white as milk, there on the asphalt.
9. It began as it always began: a sudden sharp pain behind his temples, like a spike hammered completely through his head in one blow.
10. Blood cleans off a blade so easily, really.
11. He's quiet, our stranger, with the strained, tight silence of a dog that's been kicked for every bark from 'hey, you're not supposed to be in here' to 'hello.'
12. He killed again today.
13. The road tugs at your feet: cold, wet, sucking mud like spring nights hunting for a lost ewe about to have her lamb, ruts under your soles like the roads into the West when you left New York the first time to cross the Plains.
14. The road is old, a narrow ribbon of beaten earth running between browning fields of corn left standing, unpicked, under a red-orange harvest moon.
15. Silence poured over the night, dense and moving from spot to spot ahead of the rushing wind.
16. The sun's baking him in his own salt, hot enough already that the sky's more white than blue.
17. Liquid trickled down his back, rain or sweat, but just out of reach and incredibly annoying as a result.
18. Mulder pulled the jeep over onto the shoulder of the Blue Ridge Parkway and turned off the engine, ignoring the lack of guardrails.
19. I awoke to the scratch of wool and the scent of someone who was mine.
20. The teachers never tell you about this part of a quickening.
21. They don't tell you things like this at the Watcher academy.

Edited to explain the idea, since clearly I wasn't awake enough when I did this... Thanks, Killa!