I began with the idea of a horror story set during a mountaineering expedition and all the detail, Kanchenjunga, its five peaks, Crowley, all of that came out of the research. I just kept discovering these weird facts and coincidences and everything slotted into place. It felt like I’d stumbled onto a story that wanted to be told, which has never happened before or since.

I found myself contemplating what it might mean to combine the picaresque with necromancy. I find necromancy an entertaining profession, I love eighteenth century-style narratives, and I adore shady heroes, so it seemed a natural combination.

As a writer I don’t always like to answer all the questions a story presents, or every question readers might have. Of course, I want the logic of the story to operate . . . but I want to leave room for a few mysteries, too. To me, that’s a key element to much of the horror fiction I enjoy—the questions that keep readers coming back to a piece, especially the ones that might make them see it a little differently the next time they read it.

The premise was drawn, as you might expect, from my experiences trying to deal with a toddler in church. When you are getting glared at by a hundred old people, your mind begins searching for any escape, and somehow this story kind of appeared in my head during the course of one very traumatizing baptism.

What drew me to “Hansel and Gretel” was a Yiddish word, “gunsel,” that I happened upon in the dictionary. One of its several definitions went something like, “a youth, particularly a homosexual one, kept by a tramp.” So there’d been a time and place in which tramps commonly kept boys for sexual purposes—so commonly that there was a word for it? I immediately wanted to set a story there, and to tell it from the point of view of a gunsel.