The Erasmus arrives at Anjiro as more than a wrecked foreign vessel: it is a movable store of weapons, maritime knowledge, and political leverage. Yabu initially assumes control and considers selling it to the Portuguese, but Toranaga acts before that plan can proceed, sending Hiro-matsu to claim the ship and everything aboard. The resulting contest makes Blackthorne’s practical knowledge of navigation newly consequential and shows that control of the sea can alter a struggle otherwise expected to be fought on land.

Background and the ship’s value

A voyage beyond familiar waters depended on scarce and imperfect navigational charts; longitude could not be fixed, leaving sailors uncertain of their position when land disappeared from view. Pilots therefore relied on rutters: small books recording courses between ports and capes, soundings, water color and seabed, prevailing winds and currents, storm seasons, anchorages, places to take on water, and the dangers or allies encountered along a route. Such records could guide a voyage out and back, but they were only as reliable as their pilot, copyist, printer, or translator, and could contain mistakes or deliberate deceptions.

That uncertainty gave the books extraordinary political and commercial importance. English, Dutch, and French pilots possessed rutters for their own waters, while Portugal and Spain guarded the records for much of the rest of the world as national treasures. Blackthorne’s old teacher, Alban Caradoc, had taught him that a rutter could answer some of the questions charts could not. The knowledge was practical rather than abstract: it concerned where to sail, how long a passage might take, where a ship could shelter or be repaired, and what dangers lay beneath the water.

The Erasmus itself was vulnerable when it reached Anjiro. Its foremast had been carried away by the storm, leaving a jagged stump, and Blackthorne recognized that the vessel could be repaired and taken back to sea. But escape was not a matter of simply slipping the moorings: he could not take the ship out alone, and he had no crew ready to sail it. The ship’s condition thus sharpened the difference between possessing a vessel and having the people and local freedom necessary to use it.

Yabu’s claim and Toranaga’s intervention

Yabu regarded the Erasmus in explicitly commercial terms. He directed Kasigi Omi to keep it safe and said that Zukimoto had already sent letters to a dealer at Nagasaki offering it for sale to the Portuguese, who could come and collect it. Omi proposed a different use: retain the ship and have its foreign sailors train Japanese sailors to handle it. Yabu dismissed the suggestion, laughing at the idea of becoming a merchant. He believed the coming war would be fought on land and treated the sea as the province of merchants, whom he disparaged as usurers, pirates, or fishermen.

That confidence was interrupted by the arrival of a Toranaga-crested galley rounding the headland. Its many oars made it a swift Japanese coastal vessel, able to move without depending on wind or tide. Hiro-matsu came ashore alone. He was Toranaga’s trusted general and adviser, and his armed presence gave the ship’s arrival immediate political force: he had not come merely to inspect the foreign vessel as a curiosity.

Hiro-matsu told Yabu that Toranaga had confiscated the ship and all its contents. The announcement landed as a direct challenge to Yabu’s authority in Izu, his own fief, where he believed Toranaga and Hiro-matsu had no right to issue orders. Yabu’s hand tightened on his sword. Hiro-matsu, meanwhile, remained composed and understood the danger of the position he had accepted: the confrontation could become a matter of killing or being killed. The seizure was therefore a transfer of ownership backed by the possibility of immediate violence, even though the episode does not culminate in a fight between the two men.

A contested account of the arrival

The two sides also differed over who had the right to act first. Yabu explained that he had investigated the ship because he considered it important to their cause. Hiro-matsu answered that Toranaga already knew what was happening and had sent him. Yabu had been at Anjiro for a day and a night; Hiro-matsu’s exceptionally quick arrival made Yabu wonder who had reported the ship and his own departure. The scene establishes Toranaga’s reach without identifying the source of his information, leaving Yabu to reckon with the possibility that his movements were already known.

When Hiro-matsu asked what had happened after the vessel arrived, Yabu, Omi, and Mura each gave an account. Their reports were selective: Yabu left out an episode involving a courtesan and a boy, Omi withheld his private conversations with Yabu, and Mura omitted an intimate detail about Blackthorne. The differing omissions show that even a factual report was shaped by judgments about relevance and propriety. Hiro-matsu then asked how many of the foreign sailors remained; Omi answered that ten were left, including their leader, Blackthorne.

Aftermath and maritime significance

The confiscation changed what could happen to the Erasmus. Blackthorne saw that the vessel might be made seaworthy, but the possibility of departure remained constrained by the absent crew and the Japanese control of the harbor. Yabu’s contemplated sale to the Portuguese was displaced by Toranaga’s claim, making the ship an asset in a larger contest rather than a commodity Yabu could dispose of at will. The arrival also brought the foreign sailors under a new arrangement: Hiro-matsu ordered guards left with them, while Omi was to keep them from harm and report anything useful they obtained.

The episode’s wider maritime consequences emerge through the journeys that follow. Rodrigues pilots Toranaga in a galley toward Anjiro and back, choosing an open-water course from Cape Ito toward Cape Shinto rather than hugging the coast because speed matters. The voyage depends on a pilot willing to leave the shelter of land, a contrast with the acknowledged limits of Japanese coastal sailing at the time. Later, when Toranaga’s party is pursued at sea by the Santa Theresa, Blackthorne judges the galley’s freedom to maneuver against the frigate’s superior speed and directs the course near the cliffs. The Erasmus’s arrival therefore begins a sequence in which ships, pilots, and navigational judgment become instruments of political survival. Its decisive reversal is not that Yabu discovers the value of the sea, but that Toranaga claims the vessel Yabu had treated as somebody else’s cargo.