A missing Chinese scientist, unexplained noises from the Arctic ice, and a possible mole in the American intelligence community are just some of the challenges President Jack Ryan faces in the latest installment of Tom Clancy's bestselling series.

Onboard an icebreaker in the Arctic Ocean, a sonar operator hears an unusual sound from the ocean floor. Unable to isolate it, she attributes the event to an anomaly in a newly installed system.

Meanwhile, agents from the Chinese Ministry of State Security are dealing with their own mystery—the disappearance of the brilliant but eccentric scientist Liu Wangshu. They are desperately trying to keep his crucial knowledge of air and naval technology out of the hands of their rivals.

Finding Liu is too great an opportunity for any intelligence agency to ignore, but there’s another problem. A high-ranking Chinese mole codenamed Surveyor has managed to infiltrate the American intelligence community. President Jack Ryan has only one choice: he sends John Clark and his team deep into China to find an old student of the professor who may hold the key to his whereabouts. It’s a dangerous gamble, but with John Clark holding the cards, Jack Ryan is all in.

Setting: Arctic Ocean, China, Washington, D.C.

Series Overview: Tom Clancy's Jack Ryan series is one of the most successful thriller franchises in history. All twenty-one books have been New York Times bestsellers, with most reaching number one.