The Medway II submarine recovery mission is the wartime operation in which the narrator retrieved an experimental infrared sighting device from the sunken U.307 near Beirut. Its importance is both technical and personal: the recovered equipment was a new tool for night observation, and its journey back to London brought the narrator into contact with Ross for the first time.

Wartime Setting

The episode is set during the dark days of the Mediterranean War, when the narrator describes the Wehrmacht as seeming to have completed what Darius began. Beirut was then a submarine base called Medway II, and the waters nearby held the wreck of U.307. The retrospective framing places the salvage mission within a wider war, but the account concentrates on the hazardous recovery rather than on a battle.

The Recovery from U.307

U.307 had sunk in thirty-eight fathoms of water. Its flooded control room contained a newly developed infrared sighting device designed for night viewing above the surface. The depth made the descent difficult, but, as the narrator puts it in substance, not beyond a diver's reach. The equipment was still wet when the team brought it aboard the plane, marking the recovery as a physical salvage rather than merely the collection of plans or intelligence about the device.

Return to London and Meeting Ross

The recovered device travelled by plane to London, dripping over the narrator's knees during the journey. That concrete detail gives the mission an unusually immediate afterimage: a piece of secret technology carried out of a submerged control room remains wet in transit to the capital. In London, the narrator met Ross for the first time. The mission therefore also marks the beginning of their personal acquaintance, though the account does not specify what either man thought of the other at that meeting.

Narrative Significance

The mission is recalled as an earlier episode in the narrator's intelligence career, distinct from the later investigations into missing scientists and scientific leaks. Its brief account links technical intelligence to the material conditions of its collection: the useful information is embedded in equipment that must be reached underwater, recovered, and transported. The first meeting with Ross gives the operation a further consequence in the narrator's history; later, Ross would conceal Carswell because he feared for Carswell's safety, placing their association within a continuing world of secrecy and protection.