"A lack of invitation will prevent me from entering the home of a living human. I don't usually need to enter the place, and when I do there is rarely a human living there."

"Oh, I didn't realize it was only humans. Does that mean anybody can just walk into the brick place since it's just you and Jarvis there?"

"It might," he says. "But Jarvis would notice."

"I'm sure he'd notice, but what would he be able to do about it?"

"He could tell me," says Sherlock.

"If you're out - say, in L.A. - that doesn't help much."

"What do you propose we do about this?"

"I don't have an idea, at least not yet."

"If you think of something, do let me know."

"Well, you could cover the exterior of the place with crosses, although that might make it unpleasant for even you to live in and if you overdid it you'd attract extra attention on that basis. Did Tony put in exterior cameras? If he did Jarvis can tell whether someone coming is you or not and turn on sunshiney lights or not on that basis." She shrugs. "Maybe I'm worrying too much, there aren't many vampires left in Sunnydale now that I've been here a while."

"And intruders are by no means guaranteed to be vampires."

"Yes," agrees Bella, "but non-vampire intruders cannot learn your species solely by their ability to walk into your house."

"I suppose not."

"I'll mull it over, if I come up with anything more generally applicable - hm, I don't suppose standard Jarvis installations come with artillery or anything?"

"No."

"Not strong feelings, no."

"I detect a change in interest," Sherlock observes.

"Aren't you observant?"

"I like to think so," he says. "Is it time for dessert?"

"Scientific dessert," she says, nodding and leaning her head over to let him at the location whence dessert.

Mmmm. Dessert. Snuggly dessert. (It's the best kind.)

Ooh. Highly logical, that.