Since Bram Stoker’s Dracula was first published in 1897 it has inspired hundreds, if not thousands, of other fictional vampires. But none are quite as strange as that found in the frigid climes of Iceland. There, just a few years after Dracula was first printed, emerged a so-called translation that diverged so radically from Stoker’s that it introduced new characters, new scenes, and new themes—and yet seemed to have been published with Stoker’s blessing. People have since spent years trying to figure out how exactly this Nordic Dracula came to be—and who its true author is. It all makes for a seasonally appropriate literary mystery—one full of doppelgängers, supervillains, plot twists, and vampires who just refuse to die.

In this episode, you’ll hear from Ásgeir Jónsson, literary enthusiast and Governor of the Central Bank of Iceland ; Helen Zaltzman, host of The Allusionist podcast; Icelandic publishing scholar Kristján B.…