Submergence

A love story, a spy story, and a vivid portrayal of Africa and the secret depths of the sea.

In a room with no windows on the coast of Africa, an Englishman, James More, is held captive by jihadist fighters. Posing as a water expert to report for the Secret Intelligence Service on al-Qaeda activity in the area, he now faces extreme privation, mock executions, and forced marches through the arid badlands of Somalia.

Thousands of miles away on the Greenland Sea, Danielle Flinders, a biomathemat...