“I’m not the scream-and-jump-on-a-chair type but I was pretty startled, let me tell you. There’s something about when you see something move and you weren’t expecting it, you know? Move in the very corner of your eye. You think, Eek! and your heart speeds up and the back of your neck gets prickly.” “It’s atavistic,” Henry tossed over his shoulder. “Pardon?” “It’s a reflex from our caveman days.”