Where does that leave Kenneth J. Malone?
And, possibly even more important:
Where was Miguel Fueyo?
It was obvious that he'd vanished on purpose. And it hadn't just been something he'd recently discovered. He had known all along that he could pull the trick; if he hadn't known that, he wouldn't have done what he had done beforehand. No seventeen-year-old boy, no matter what he was, would give the FBI the raspberry unless he were pretty sure he could get away with it.
Malone remembered the raspberry and winced slightly. The cab driver called back: "Anything wrong, buddy?"
"Everything," Malone said. "But don't worry about it."
The cab driver shrugged and turned back to the wheel. Malone went back to Mike Fueyo.
The kid could make himself vanish at will.
Invisibility?
Malone thought about that for a while. The fact that it was impossible didn't decide him against it. Everything was impossible; that much was clear. But he didn't think Mike Fueyo had just become invisible. No. There had been the sense of a presence actually leaving the room. If Mike had become invisible and stayed, Malone was sure he wouldn't have felt the boy leave.