"The Subtler Art" was published in the anthology Blackguards: Tales of Assassins, Mercenaries, and Rogues.

About this story, author Cat Rambo says, "This is the second time I've written about Serendib (the first story featured the antagonist from this one), but the world's been floating around in my head for a couple of decades now, originally as a game setting, and I can tell more stories and a possible novel are lurking within it as well. I chose a middle-aged married couple as my protagonists because I don't see much heroic fantasy with characters like that, and it seems like a definite lack to me."