The disappearance of Sir John Franklin's Arctic expedition of 1845 led to many rescue attempts, some by the British government and some by private individuals, as well as a large number of works recounting these expeditions and reflecting on the mystery. Little is known about the author of this 1857 work, James Parsons. He begins this dramatic account by noting that the disappearance of a large and well-equipped party is almost unprecedented in the Arctic: nothing certain was known about Franklin's fate twelve years after the last recorded sighting. Parsons' speculations derive from a knowledge of naval practice, and familiarity with the seas and climate of the Arctic region and the records of earlier expeditions. He offers practical suggestions about a new attempt using steam-boats, but knows that this will be to find out what actually happened, because there could now be no possibility of finding survivors.