Seahorse maneuvered past three enemy escorts, launched four torpedoes from periscope depth, and sank the cargo ship, Daishu Maru. On 26 November, the submarine contacted another enemy convoy and began to close the range. Determined to mount an attack before the targets entered the mined Tsushima Strait, the submarine launched four torpedoes at long range quickly sinking a cargo ship; and then, dodging enemy escorts, let go four stern shots at a second target. The results seemed disappointing—until a sudden blast sent flames and debris mushrooming high into the air, completely destroying the 7,309-ton tanker, San Ramon Maru. Seahorse expended the last of her torpedoes on the night of 30 November and 1 December. After maneuvering for several hours, the submarine was finally able to fire her stern tubes at an enemy convoy. However, one torpedo exploded just after it left the tube, and the entire convoy opened fire on the vicinity of the submarine. With so many explosions around her, it was impossible for Seahorse to determine whether any torpedoes had hit. Low on fuel and out of torpedoes, the submarine returned to Pearl Harbor on 12 December from a successful second patrol, with four ships and three trawlers sunk. Third war patrol, January – February 1944 Seahorse departed Pearl Harbor on 6 January 1944 for her third war patrol. On 16 January, while en route to the Palaus, she evaded four escorts and destroyed the 784-ton cargo ship, Nikkō Maru, with three torpedo hits. She spent 21 January tracking two enemy cargo ships in company with three escorts. In the late evening, she pressed home four consecutive attacks to sink the 3,025-ton cargo ship, Yasukuni Maru, and the 3,156-ton passenger-cargo ship, Ikoma Maru. On the evening of 28 January, Seahorse began an 80-hour chase of an enemy convoy off the Palaus. After being continually harassed by escorts and aircraft throughout the next day, Seahorse launched three torpedoes at the cargo ship, Toko Maru. After the sinking, the submarine lost contact with the convoy for several hours, but again had it in sight at dawn on 31 January. Early on the morning of 1 February, Seahorse launched four torpedoes for no hits followed by two more, again without result. With the crew exhausted from the extended chase, the submarine fired her final two torpedoes and headed for deeper water. After evading the escorts, she surfaced in time to see