"Remind me to throw one at you sometime," Kathy said. "So, you know the premise, right? You're reading your book, and all of a sudden, you have a choice. You can go left, or right, or straight ahead and each choice tells you to go to a different page. It's like I have that kind of thing running in my head all the time, spinning off different possibilities for everything I do. Or don't do."

She paused. She could leave it there, maybe. Strengthen the walls there, increase the distance.