From the USA Today–bestselling author of The 7th Victim, FBI profiler Karen Vail teams up with Scotland Yard in "this thrill ride of a book" (Joseph Finder, New York Times–bestselling author of The Oligarch's Daughter).

When a potent firebomb destroys part of an art gallery in an exclusive London district, FBI profiler Karen Vail is dispatched to England to work with Scotland Yard on drafting a threat assessment to head off future attacks. But Vail soon discovers that at the heart of the bombing lies a four-hundred-forty-year-old manuscript that holds clues to England's past—with dramatic political and social implications. The manuscript's content is so explosive that a group of political radicals is bent on destroying it at all costs.

Or is it the work of someone else? The trail leads Vail to a notorious fugitive who has escaped law enforcement for decades, and who appears to be planning a major attack on London and the United States. When Hector DeSantos, banished from the US Department of Defense and now a rogue covert operative, turns up in England and takes actions that threaten Vail's life, she finds herself on the run from the British security service, Scotland Yard, and a group of internationally trained assassins—all determined to silence her . . . all tightening the net to ensure that she's got no way out.

"Jacobson has written the thriller of the year." —The Strand Magazine

"What fun to read! . . . Don't say you weren't warned." —New York Journal of Books

"Outstanding." —Library Journal, starred review