BY THE TIME HE GOT up to the late lieutenant’s bedchamber, no fewer than four grappling-irons were already lodged in the sills of its open windows. As he approached, a fifth erupted through a sash, and flying glass nearly accounted for his remaining eye. He spun away, backed to the window, thrust his hand out into the breeze, and skated it back and forth until he heard an answering cheer from below.