Donald E. Westlake,
Call Him Nemesis
“ Somebody—call it person or persons unknown, for the fun of it—is stepping in every once in a while when there's a crime being committed. He stops it. He calls himself the Scorpion, and he uses some pretty dizzy methods. He melts automobile tires, makes a rifle too hot to hold, makes knives and leather jackets ice cold—how in heck does he do things like that?""Yeah," said Stevenson. "And just incidentally, who is he?""Well," said Roberts, "he's a kid, that much is obvious. That whole letter sounds like a kid. ”
