The torpedoing of a merchant ship and its rescue by Cadena turn the convoy’s abstract exposure to submarine attack into a visible wreck and an urgent rescue. Two white rockets bring the news to Keeling; the damaged vessel is nearly submerged before Cadena can take aboard men from its lifeboats. The rescue succeeds for those who reach the ship, but the sinking and the unknown number of dead make clear that survival and loss are inseparable in the incident.

Warning and decision

The report arrives at a moment of attempted respite. Krause has been in contact with the enemy through a long day and is weighing the need for food and a brief personal break when a talker announces two white rockets from the convoy. The signal means a ship has been torpedoed. Krause understands this at once, but takes two seconds to react; the delay registers the shock of a sudden reversal, not a failure to grasp the danger. He runs onto the bridge wing with his glasses and calls to the after look-out for a better view.

A signal from the Commodore then orders the general alarm. From Keeling, Krause can see that the third ship in the second column is out of position and the ship behind it is swerving to avoid it. The convoy’s formation is already disrupted, and the torpedoed vessel is in danger of being left behind. Sending a Canadian corvette back would cost time: its slight excess of speed would make rejoining slow. A destroyer is needed, and Keeling is closer than Viktor. Krause takes the conn and turns Keeling toward the convoy’s damaged ship.

The decision marks a change in the use of the escort. Keeling had not sounded the general alarm merely because James and Viktor were pursuing a distant contact. Keeping the whole crew at battle stations for too long would exhaust the men, interrupt ordinary shipboard work, and consume the ship’s battle reserve. The rockets and the Commodore’s signal make the emergency immediate and visible; now the ship must act. The event shows how conserving readiness does not mean withholding it when the convoy’s danger becomes unmistakable.

The wreck and the rescue

Keeling passes the convoy on an opposite course, just shaving the starboard line of ships. At about a hundred yards, Krause sees the leading vessel close by: battered, dingy, and rust-marked, with only one or two heads visible. The other ships continue steadily onward. Their course cannot be abandoned to gather around the wounded vessel, so the convoy’s movement and the rescue separate into parallel obligations: the ships keep station while Keeling heads toward the danger.

Through a gap between ships, Krause catches sight of Cadena, the convoy’s designated rescue ship, far astern. At first there appears to be nothing beside it. Then two boats rise into view on the waves, and beyond them a long dark shape emerges in the spray: the torpedoed ship, nearly upside down and nine-tenths submerged, with its bilge showing. The wreck is still afloat, but its position in the water makes the likely outcome plain.

Both lifeboats are alongside Cadena. The rescue ship rolls in the trough to give them a lee and has its scramble nets down. From Keeling, Krause can make out men as small specks against Cadena’s dark side, climbing aboard. The scene establishes what the rescue can accomplish: Cadena has reached the boats and is receiving survivors directly from them. It does not establish how many people have escaped or how many remain aboard the sinking vessel.

Sinking and immediate aftermath

As Keeling moves across Cadena’s bows, a look-out cries that there is a torpedo to port. The wreck is breaking up: sonar reports the noises of a sinking ship, and Krause instructs the sonar operator to search elsewhere. The ship’s bows rise higher as cargo, engines, and boilers tumble aft. Its upper works burst through the surface beneath cascading water; the vessel rolls over, then settles into a final, unstable posture, its bows still raised.

Cadena reports a speed of eleven and a half knots. That is better than Krause expected, but its rescue work has pulled it away from the convoy. By his estimate, the convoy is now six miles off, and Cadena will need more than two hours to regain its station. The successful recovery of people from the lifeboats therefore carries an operational cost: the vessel assigned to rescue is temporarily separated from the formation it is meant to serve.

Krause looks back once more. The ship hangs vertically, with only about twenty feet of its bow above the sea. Two miles away, the abandoned lifeboats rise and fall on the waves, marking where the fortunate crew climbed aboard Cadena. Wreckage remains on the surface. Krause recognizes the grim significance of these fragments, but the number of people who died when the torpedo struck is not known to him. He must also make a report about the loss.

Return to escort duty

The sinking does not suspend the threat to the rest of the convoy. With a U-boat within torpedo range, Keeling cannot hold the same course for long. Krause orders a change of rudder and then steadies the ship, returning his attention to the immediate work of escort. The lifeboats and the nearly vertical wreck remain behind, but Keeling’s protection of the moving convoy continues.

The episode holds rescue and combat in the same frame without letting either erase the other. Cadena’s lee and scramble nets provide a route from the boats to safety; the wreck’s final plunge leaves casualties uncounted. Keeling can witness the rescue and the sinking, but must also preserve its own freedom of movement against another attack. The convoy survives as a formation only through such divided attention: individual ships are lost or displaced, while escorts and rescue craft answer separate demands under the continuing submarine threat.