The machine shut off with an enormous crack, but the tingling sensation didn’t go away immediately. An hour later, after they had finished the tests and the questions, he could still feel it fading into his fingertips and toes.
The hospital ward become dormitory was empty except for him; he was the only test subject. It wasn’t until he shut off the lights to go to bed that he realized he was almost imperceptibly glowing.
Write down anything unusual, the briefing materials said.
In another hour he was flying a mile over the city, designing his costume in his head.