From Inside the Grey House:
Julia nodded and opened the door for him. The house was in Noe Valley. As with most of San Francisco, the houses were right next to each other. Most homes looked like they shared walls. Long before prices grew out of hand in the area, Anthony purchased three houses right next to each other. He lived in the middle house, and his humans lived in the ones to each side. They built a connecting basement to allow humans to visit without being seen by nosy neighbors. It worked well enough, but Anthony knew at some point, he would need to change things up.
“You’re deep in thought, aren’t you?”
Anthony drew himself out of his thoughts and saw they were in his study. “I suppose. Were you talking to me?”
“I asked if you needed to feed.”