She was silent, and the flickering of her eyes told me she was conducting an internal debate. Finally she nodded, and began, "You know how most kids have invisible friends? I had one, too. Lolita always had lots of friends, but..." She shook her head, stopping that train of thought. For an instant I could see Jocasta as a young girl, with the same vulnerable expression now in her eyes. "I was more comfortable by myself, I think," she said. "I was ten when I first realized that..." She hesitated again, and tried another tack. "We grew up in Arbor Heights. I was out walking-it was safer to walk then than it is now-and I was pretending that Sarah was walking with me." She blushed and lowered her gaze. "Sarah was my invisible friend." I nodded, but didn't say anything.