"Very well," Waterhouse says, "you leave me no alternative. Duty calls." He squares his shoulders, spins on his heel, and marches back to his desk. Skerries have already made off with all of Margaret’s scones, but he pours himself some tea. Then he resumes encrypting his instructions to Chattan: ONLY BRUTE FORCE APPROACH WILL BE SAFE PUT CODE BOOK ON SHIP INSERT SHIP IN MURMANSK CONVOY WAIT FOR FOG RAM NORWAY.