Italo Calvino - The Nonexistent Knight & The Cloven Viscount - "Two novellas: the first, a parody of medieval knighthood told by a nun; the second, a fantasy about a nobleman bisected into his good and evil halves.
Anywhere else, they’d be vermin. At the Mandel Academy, they’re called prodigies. The most exclusive school in New York City has been training young criminals for over a century. Only the most ruthless students are allowed to graduate. The rest disappear.