When the debriefers had had their fill, and it came time to decide just what to do with him, the bloodhounds of internal security conducted highly secret reviews and issued their recommendations, also in secret. In the end, it was deemed that Grigori, though reviled by his former comrades, faced no serious threat. Even the once-feared Ivan Kharkov, who was licking his wounds in Russia, was deemed incapable of concerted action. The defector made three requests: he wanted to keep his name, to reside in London, and to have no overt security. Hiding in plain sight, he argued, would give him the most protection from his enemies. MI5 readily agreed to his demands, especially the third. Security details required money, and the human resources could be put to better use elsewhere, namely against Britain ’s homegrown jihadist extremists. They bought him a lovely mews cottage in a backwater of Maida Vale, arranged a generous monthly stipend, and made a onetime deposit in a City bank that would surely have caused a scandal if the amount ever became public. An MI5 lawyer quietly negotiated a book deal with a respected London publisher. The size of the advance raised eyebrows among the senior staff of both services, most of whom were working on books of their own-in secret, of course.

For a time it seemed Grigori would turn out to be the rarest of birds in the intelligence world: a case without complications. Fluent in English, he took to life in London like a freed prisoner trying to make up for lost time. He frequented the theater and toured the museums. Poetry readings, ballet, chamber music: he did them all. He settled into work on his book and once a week lunched with his editor, who happened to be a porcelain-skinned beauty of thirty-two.