"It would be a waste of time for me to leave a bag of blood outside for you at sunset and for you to run it back to your 'regrettable little hotel' to microwave it, regardless," says Bella. "I may as well take care of that." (She can always hold her nose. She owns clothespins.) "Acknowledging that microwaves may vary, how much do you need and how long do I nuke it?"
"A jar a night and two minutes seems to be about the right answer. I haven't been eating this way for very long."
"Sure. Do you need any now - or, no, you wouldn't, you said it was your fridge, not your microwave. Leave the backpack on the driveway and I'll come take it in."
She comes downstairs, fetches a grocery bag, goes outside, and opens the bag. (She doesn't trust him perfectly yet - but she thinks it would offend anyone's sense of anticlimax at this point to kill her with a trapped bag.) She unzips it, peers inside, verifies that it contains labeled jars of blood, and transfers the jars to the bag so he can keep his backpack. She runs them into the kitchen, reorganizes the vegetable crisper, and puts the bag in next to the leftover turkey. She puts a sticky note on it that says "ASSORTED ANIMAL BLOOD - SHERLOCK'S FRIDGE BROKE - YES DAD I AM BEING SAFE THANKS" and then grabs her messenger bag and heads out to start the evening.
He's probably still there. (It varies how perceptible he is when he follows her, but he has never yet failed to appear on command.)
She hasn't been handling neighborhoods in any systematic pattern. She wants to inconvenience vampires, not herd them into a specific more-comfortable patch of town. The next one on her list is within easy walking distance. Scratch stuff paint paint scratch. She's tempted to whistle. She doesn't.
A pair of demons - Sherlock may recognize them from the other night, but they're passing for human, and walk right over Bella's crosses - do whistle. And head in Bella's direction. She looks around, but when they go by a scratched fire hydrant, she doesn't pull out her crossbow.
Just yet, appearing would probably do her more harm than good. So he doesn't.
(Yep. Completely devoid of supernatural senses.)
"I don't count, my dad's chief of police and I get left alone, but -"
The demon on the left can't pass for human anymore after he grins and bares sharp teeth.
Out comes the crossbow.
His services are not technically required just yet. But he prepares to act the very instant that they are.
"Sherlock?" she squeaks as she runs out of bolts in this quarrel and trots away, backwards, reaching into her bag for the next.
Four seconds later both demons are dead.
Bella's breathing hard more out of emotion than exhaustion. "N-nicely done," she says.
"You're welcome," he says lightly. "I remember these fellows from the incident the other day; I didn't want to connect us in their minds until I was sure I needed to kill them both."
"I don't think most kinds of demons eat people the way vampires do. What did they want with me?" Bella wonders, putting a new quarrel into her crossbow before she stashes it in her messenger bag again.
"The person they killed before was also a woman, wasn't she?" Bella asks, frowning. "Did she have any other notable features? How old was she?"
"Now that you mention it, she was almost exactly your height," he says. "Otherwise unalike—older, browner, not a student, not connected to the police in any obvious way. The height may or may not be a coincidence."
"Okay. I'll ask Charlie to keep an eye out and see if anyone turns up dead of barbecue-fork-unrelated causes, especially if they're similar to her in cause of death. If they're not just playing around there might be some connection and we can figure out what they're doing."
Cause of death in that woman's case was mainly teeth, as he recalls from his brief glimpse.
"The barbecue fork thing was really ridiculous before I showed up. I can't even figure out why this town is inhabited," mutters Bella, looking at the demon bodies. "Hm. I don't have a procedure for dealing with these. The vampires take care of themselves."
"Never underestimate the human capacity for denial. Do you object to just leaving them here?"
"I suppose I can explain them to Dad and he can either make something up or nudge it towards being the thousandth annual unsolved murder of something not found in any biology textbook," she says. "Didn't they have friends, though? Are they more likely to do unpleasant things to one or the other of us if they find the bodies?"