In the last installment of the Stormlight Grimoire—my in-depth exploration of the many magical systems at work in Brandon Sanderson’s epic saga The Stormlight Archive—I compiled all the information I could get my hands on about Surgebinders and the Knights Radiant, paying special attention to the Windrunners. This week, however, I want to go even deeper. The Way of Kings’ primary plot arc follows Kaladin’s transformation into a Windrunner, so we’ve theoretically seen every step in that process. I’m going to carefully study the conditions of his transformation, especially his exposure to the highstorm, and see if I can sketch out what it takes to become a Windrunner. This article, like every article in the Stormlight Grimoire, will contain heavy spoilers for The Way of Kings.