"Have to, every day," Kieren agrees, feeling slightly numb to talk about it. He rubs a hand over his cool skin and isn't sure what else he can say about this. "It's what prevents me from going rabid," he says, listening carefully to the knocking of the coffins beneath him. "It's what keeps me from doing what I think these people are doing. Rising from the graves," he says, and thinks to himself and being so, so hungry.