When the experienced Arctic explorer Sir John Franklin (1786-1847) was put in command of an expedition in 1845 to search for the elusive North-West Passage he had the backing of the Admiralty and was equipped with two specially-adapted ships and a three-year supply of provisions. Franklin was last seen by whalers in Baffin Bay in July 1845. When the expedition failed to return in 1848, enormous resources were mobilised to try to discover its fate. In 1852 H.M.S. 'Assistance' was sent to lead another search mission. It was captained by Edward Belcher (1799-1877), who eventually took the decision to abandon four ships in the pack-ice. He recounts his unsuccessful adventure, defending his actions against critics.