The story of HMS Investigator and the voyage undertaken by Vice-Admiral Robert McClure (1807-1873) in 1850-1854 to search for the missing Franklin expedition which had disappeared in 1848. McClure was born in Ireland and joined the Royal Navy in 1824, obtaining his first polar experience in HMS Terror in 1836. He joined an early expedition to find the Franklin expedition in 1848 and then in 1850 accompanied HMS Enterprise, under the command of Richard Collinson, on a further search. The two ships were separated in a storm, never to meet up again. McClure continued through the Bering Strait but was eventually forced to abandon the ship after she became icebound in Mercy Bay in 1853. The crew continued overland finally meeting up with HMS Resolute and HMS Intrepid, also searching for Franklin from the opposite direction. The text is supported by a detailed bibliography, notes and appendices which include the crew list of HMS Investigator and detail the creation of the Polar Medal.