"That would be the source of ignition for the Infernal Devices, then," said Leibniz over his shoulder. He was still en garde with the paddle, protecting the other two, who were crouched behind him at the base of the hedgerow. But this was less and less necessary, as the Mohawk now had the dog’s undivided attention. The horse kept rearing so that it might bring down its hooves on the mastiff’s head.