Wiki Coffin, linguist aboard the U.S. Exploring Expedition, the famous voyage meant to put America at the forefront of 19th century scientific discovery, brings many skills to his job. Whether he's translating native languages, assisting his good friend Captain George Rochester as unofficial first mate, or upholding the rule of law as deputy to the sheriff of the port of Virginia, Wiki is never far from the action aboard the seven ships that make up the expedition. But when they encounter a wrecked sealing ship and its desperate crew on the shoals of remote, uninhabited Shark Island, Wiki has little idea just how many of his skills are about to be put to the test. As soon as they board the wreck, a dead body turns up with a dagger firmly inserted between its shoulder blades. And it's not just any dead body: the victim of the brutal murder is none other than the enigmatic captain of the doomed voyage. What’s more, Wiki's colleague and nemesis Lieutenant Forsythe is suspected of the crime.