sighted her first target of the patrol, a large Japanese freighter. The target, however, soon outdistanced the World War I-design submarine and disappeared into the ever-present fog. Material defects continued to cause problems. Her starboard engine soon went out of commission; and, as repair work was started, a freighter and a destroyer were sighted approaching on a course which would bring them over her position. A half hour later, the two enemy ships passed overhead, one to port, the other to starboard. Repair work was then resumed. By dawn of 29 June, the engine was again operable; and, on 30 June, S-35 shifted north to Araido, thence proceeded to the Kamchatka Peninsula, whence she moved back down the coast and covered Shimushu Strait, Paramushiro Strait, and Araido Strait. On 1 July, she found a clear area in the fog and sighted a fishing tender awaiting the return of its trawlers. At 18:02, she fired two torpedoes at ten-second intervals; watched the first hit; and saw the second porpoising haphazardly through the water toward the target. At 18:06, she fired a third torpedo and watched the target explode and list heavily to starboard. By 18:21, the 5430-ton Banshu Maru Number Seven had disappeared, but others remained in the area where she had been. S-35 reloaded and turned to firing position; but, by 18:25, the new targets had receded into the fog. Five minutes later, fast screws were heard; and the submarine began evasive tactics and cleared the area. On 2 July, S-35 received orders to shift to the convoy routes leading to southern Paramushiro. Arriving on 4 July, she remained through 16 July. Clear weather arrived with dawn of the last day, and, that afternoon, the submarine sighted a destroyer patrolling in concert, apparently, with a flying boat. As the flying boat disappeared toward its base, S-35 prepared to attack. At 15:41, she began her approach on the destroyer. At about 15:42, the destroyer sighted her. She went deep. For the remainder of the day and well into the night, the two adversaries maneuvered for position: S-35 evading depth charges and attempting to gain a favorable firing position; the destroyer keeping the submarine on evasive tactics and attempting to pinpoint her location and deliver a decisive depth charge. Success went to neither side. On the morning of 17 July, S-35 cleared the area and headed back toward the Aleutians. On 21