It started with lighthouses. The patrol boat Leucotón, under Pedro Fierro Herreros, had been sent to tend the lonely beacons that guide ships along this storm-battered coastline—ordinary, necessary work. Then the weather turned. On August 2, with a gale closing in, the crew sought shelter in Caleta Manquemapu inside Bahía San Pedro. The refuge betrayed them. The anchor chain snapped, and the Leucotón was driven aground. Her crew made it safely to shore, but the ship herself was stuck fast. The navy responded at once, dispatching the tug Janequeo under Marcelo Léniz Bennet, with a team of navy divers led by Claudio Hemmerdinger aboard to work the salvage.

For days the rescuers fought to free the grounded boat, and could not. Then, at four in the afternoon on August 14, the rescue itself began to come apart: a tow-line wound itself into the Janequeo's propeller and jammed it. Hemmerdinger's frogmen dove again and again into the churning water to clear the screw, but the sea was beyond them. Two more vessels, the Casma and the Yelcho, were ordered in to help—and could not even enter Manquemapu Bay, turned back by waves rising over fifteen meters. Crippled and unable to maneuver, the Janequeo was driven onto the rock Campanario, striking it over and over. She flooded slowly, but she stayed afloat. For a while.

At twenty past nine on the morning of August 15, the Janequeo broke in two. The men who lived owed their lives to the few hundred meters between the wreck and the beach, and to the strength to cross water that had already killed so many of their shipmates. Twenty-eight made it ashore. Fifty-one were lost to the cold Pacific—sailors who had come not to fight a war but to rescue fellow seamen, and who never went home. Each was someone's son, some of them husbands and fathers, and the families on shore would carry that morning for the rest of their lives. The Leucotón, the ship they had come to save, still lies rusting on the beach at Manquemapu, a wreck guarding the place where the other was lost.

Grief soon turned to hard questions. The following month, the new Chilean magazine Punto Final ran an analysis of the disaster in its very first issue, and journalist Miguel Torres laid blame squarely on the admiralty of the Chilean Navy for how the operation had been handled. The dead, at least, were not forgotten by their service. The navy named three of its ships after sailors who died at Manquemapu: the patrol boats Fuentealba and Odger and the landing ship Hemmerdinger—the last bearing the name of the very officer who had led the divers into that impossible sea. To say those names aloud at sea is to remember the men who answered a call for help and gave everything to it.