Chapter 74: Teeth, Part 4

Then he saw it—a flickering shadow of a man, then another, more gray than black, one that looked red-silver. So it was true that the royal castle had managed to shackle wraiths. Terrifying. Kristof nearly made a sign of warding and was glad when they were through the third gatehouse and passing over a moat that must have been fed by the river, though how it worked he could not begin to say.