"How many's that?" I asked the shepherd. "Jiggit and mumph, lord," he said. "Is that enough?" "It's enough, lord." "Kill the rest then," I said. "Jiggit and mumph?" Willibald asked, still shivering. "Twenty and five," I said. "Yain, tain, tether, mether, mumph. It's how shepherds count. I don't know why. The world is full of mystery."