Celaena swallowed the tightness in her throat and turned the page. Her heart stopped. There, looking up at her, were the symbols she’d seen near the bodies. And in the margin, written by someone centuries ago, was the explanation: For sacrifices to the ridderak: using the victim’s blood, mark the area around it accordingly. Once the creature has been summoned, these marks guide the exchange: for the flesh of the sacrifice, the beast will grant you the victim’s strength.
