The Alloy of Law (Mistborn, #4)

by Brandon Sanderson

“Miles Dagouter is Twinborn,” Waxillium said, leaning forward in their train car. “A particularly dangerous variety of Twinborn.” “Double gold,” Wayne said with a nod, reclining on the cushioned bench opposite Waxillium. Outside, the outer suburbs of Elendel passed in a blur. Marasi sat on the bench near Wayne. “Gold Allomancers aren’t particularly dangerous, from what I’ve read.” “No,” Waxillium said. “They aren’t. But it’s the Compounding that makes Miles so powerful. If your Allomancy and Feruchemy share a metal, you can access its power tenfold. It’s complicated. You store an attribute inside the metal, then burn it to release the power. It’s called Compounding. By the legends, it’s the way the Sliver gained immortality.” Marasi frowned. “I’d assumed stories of Miles’s extraordinary healing abilities to be exaggerations. I assumed he was just a Bloodmaker, like Wayne.” “Oh, he’s a Bloodmaker all right,” Wayne said, spinning a dueling cane around his wrist and catching it again. “Except he doesn’t ever run out of health.”