Captain Sir John Franklin departed England in 1845 with two ships, the HMS Erebus and the HMS Terror. Captain Franklin and his men had only one task, although it was a very important task: to locate the "undiscoverable" Northwest Passage, a brutal oceanic trade route through the Arctic Ocean. Previous attempts to locate the passage had failed. Franklin and his crew would meet a brutal end due to illness and cold . . . and, according to bestselling horror author Dan Simmons, something else. Something supernatural and terrifyingly hungry.