Ethan Kaille is a Thieftaker in Boston in the years leading up to the American Revolution. Having suffered losses and reversals in his life, he is neither naive nor without considerable personal resources. He isn’t just a detective; he’s also a conjurer, which makes him someone who lives on the margins of polite society. Some people fear his powers; others merely find him a distasteful rogue who should simply go away . . .but still, he is useful to the powers-that-be when problems arise requiring his unusual skill-set. In the novels Thieftaker and Thieves’ Quarry, as well as in the story “A Spell of Vengeance,” which was published on Tor.com, Kaille has had to deal with a variety of crimes and their perpetrators. The story that follows is one from Kaille’s early days as a thieftaker in Boston. In it, he must face a formidable foe, one of a most unexpected sort, whose own powers, very different from his own, prove the equal of Ethan’s.