CHAPTER EIGHT Riley spun around. What could have made that ugly, piercing noise? She didn’t see anything different in the bleak Arizona desert. She heard Chief Webster ask … “What’s the matter? You look like you saw a ghost.” For a second Riley thought … I didn’t see one. But maybe I heard one. Then she realized that Crivaro and Webster were both staring at her. “What was that sound?” she asked them. “What sound do you mean?” Webster asked. Then it came again—a strange rattling noise, like a car engine trying unsuccessfully to start, only higher pitched. It wasn’t as loud as it had seemed to Riley when it interrupted her experience of the killer’s mind, but she still found it jarring. Webster chuckled as he, too, noticed it. He said, “Why, girl, you just let yourself get scare