Extremis - Barry Eisler

Previously published as The Last AssassinEven for an average citizen, a love triangle is dangerous business. For assassin John Rain—"one of the most compelling lead characters in the genre" (USA Today)—it's going to be downright deadly.When Rain learns that his former lover, Midori, has been raising their child in New York, Rain senses a chance for reconciliation, perhaps even for redemption.But Midori and the child are being watched by Rain's enemies, and Rain's sudden appearance puts them in terrible danger. To save them, Rain is forced to use the same deadly talents he had been hoping to leave behind. With the help of Tatsu, his one-time nemesis in the Japanese FBI; and Dox, the former Marine sniper whose good ol' boy persona masks a killer as deadly as Rain himself, Rain races against time to bring his enemies into the open and eliminate them forever. But to finish the job, he'll need one more ally: Mossad operative Delilah, a woman for whom Rain's hopes with Midori represent an altogether different kind of threat…"…a terrific, fun read, full of modern spy craft (Eisler worked for the CIA for a while), exotic locales, hot sex and violence. Not to mention an extremely well-defined character in John Rain, who seems like a pretty good guy, given his career." —San Jose Mercury News