Aside from the grand view toward the Potomac, there was little about Carter’s lair to suggest it belonged to one of the most powerful members of Washington’s vast intelligence establishment. Nor would one have guessed as much from Carter’s rather churchy appearance. Only a handful of people in Washington knew that Adrian Carter spoke seven languages fluently and could understand at least seven more. Or that Carter, before his ascension to the rarified atmosphere of Langley’s seventh floor, had been one of his nation’s most faithful clandestine warriors. His fingerprints were on every major American covert operation of the last generation. He’d tinkered with the odd election, toppled the odd government, and turned a blind eye to more executions and murders than he could count. Morality had rarely entered into Carter’s calculus. Carter was Operations. Carter didn’t make policy, he simply carried it out. How else to explain that, within the span of a single year, he’d done the Lord’s work in Poland and propped up the Devil’s regime in Salvador? Or that he’d showered dollars and Stingers on the Muslim holy warriors in Afghanistan, even though he knew one day they would rain fire and death on him.

These days, longevity was Carter’s most notable achievement. The sages of Langley liked to joke that the war on terror had claimed more lives in the Operations Directorate than in the top ranks of al-Qaeda. Not Carter’s, though. He had survived the blood purges and the nights of long knives and even the horrors of reorganization. The secret to his endurance lay in the fact that he had been right far more often than he had been wrong. In the summer of 2001, he had warned that al-Qaeda was planning a major attack on American soil. In the winter of 2003, he had cautioned that some of the sources regarding Iraq’s weapons program were suspect, only to be overruled by his director. And as war loomed in Mesopotamia, he had written a secret memorandum forecasting that Iraq would become another Afghanistan, a proving ground for the next generation of jihadists, a generation that would ultimately be more violent and unpredictable than the last. Carter laid claim to no special powers of analysis, only a clarity of thinking when it came to the intentions of his enemy. Fifteen years earlier, in a mud hut outside Peshawar, a man with a turban and a beard had told him that one day the forces of Islam would turn America to ashes. Carter had believed him.

And so it was this Carter—Carter the secret warrior, Carter the survivor, Carter the pessimist—who, in the early morning of that ill-fated Friday in December, wearily brought his telephone to his ear expecting news from a distant land. Instead he heard the voice of Gabriel, warning that there was about to be an attack in London. And Carter believed him.