attack group with five other submarines to cruise Philippine waters. Japanese convoys ventured into the Palawan area with strong air cover during the day, but usually anchored with escort protection for the night. Learning from that a convoy had been attacked by 4 days before and trailed to Paluan Bay, the submarines closed for the attack. As the convoy headed out to sea before daylight 21 August, Ray sank one transport while the escort vessels pursued Harder. At this point Haddo entered the fray, launched six torpedoes at three targets, and dived to avoid air attack. Over one hundred depth charges churned the sea, but Haddo had already sunk cargo ships Kinryu Maru and Norfolk Maru. Next day Haddo followed Harder in for an attack on a small convoy with escorts, and Haddo succeeded in sending escort ship Sado to the bottom. Following a lone destroyer and awaiting her opportunity. Haddo was suddenly turned upon by the Japanese ship. She launched a four-torpedo spread "down the throat" of the destroyer, which veered off and headed for Manila. Cruising off Cape Bolinao 23 August, the submarine was about to torpedo a tanker close to shore when she detected a pursuing destroyer. With four torpedoes she ripped off the warship's bow. Haddo then maneuvered to finish off her antagonist, but her last torpedo missed. Despite the efforts of two Japanese trawlers and another destroyer, Asakaze soon sank, giving Haddo another kill. Diverting to New Guinea to refuel and rearm, Haddo continued her seventh war patrol. She sank a sampan 8 September and 21 September found a convoy and maneuvered into position ahead of it. While turning to avoid a destroyer, Haddo lost depth control, and was not able to regain it in time to effectively attack the cargo ships. She subsequently headed for Subic Bay, and lifeguard duty, but on the way detected a hospital ship (Takasago Maru) and survey ship in company. Disregarding the former, she sent the survey ship, Katsuriki, to the bottom. On 22 September, while serving on lifeguard station in Subic Bay,"Haddo" rescued Hollis Hills, a US Navy pilot shot down by antiaircraft fire. Hills was an American who joined the Royal Canadian Air Force before the United States entered the war, after which he joined the USN. Notably, while flying an RCAF P-51 Mustang over France in 1942, he had become the first P-51 pilot to shoot