The Franklin Conspiracy is an absorbing account of the single most enigmatic event in Canadian history. In 1845, two British Royal Navy ships, the Erebus and the Terror, commanded by Sir John Franklin, entered the Canadian Arctic in search of the Northwest Passage. Neither ship returned. A fifteen-year search uncovered evidence of unparalleled disaster, but to this day no one knows exactly how the 129 men of the Franklin Expedition met their deaths.

Although the expedition did not run out of food, there is clear evidence of cannibalism. The ships carried two hundred message...