one Ju 88 and a Bf 110 were claimed as destroyed. His final victory was an Italian SM.79 in the afternoon. The day took his tally to 40 enemy aircraft. As the wreckage of some old Greek aircraft and a captured SM.79 was being cleared up after the attack on 13 April, John D'Albiac, Air Officer Commanding British Forces in Greece, arrived to warn him of the Allied collapse in the north. After seeing the AOC off in a Lysander aircraft escorted by five squadron Hurricanes, Pattle evacuated his squadron to Eleusis. During the journey, Pattle developed a fever and high temperature. Nevertheless, on 19 April he took to the skies in several missions. By this date, Pattle's fever had metamorphosed into influenza and his condition had worsened. He did not want his squadron to know he was unwell. Pattle feared the effect it would have on morale and vowed to continue flying. The officer commanding No. 80 Squadron, Tap Jones, visited Pattle the day before and noticed he was very gaunt, drawn and that he had lost weight. Jones helped the weakened Pattle change into his flying gear. Jones was acting wing commander, but did not ban Pattle from operations. Pattle claimed six victories this day — three Ju 88s and three Bf 109s — plus one Henschel Hs 126 shared and two probables (a Ju 88 and a Bf 109). The battle with the Bf 109s took place over Eleusis and Tanagra airfields. He engaged III./Jagdgeschwader 77 (Fighter Wing 77 or JG 77) in a head-on position and executed an Immelmann turn which took him behind and above the Messerschmitts and allowed him to claim three of them shot down. No. 33 Squadron claimed four Bf 109s (three were lost). Among the victims was the German ace, Kurt Ubben. Ubben landed in Allied territory and was picked up by a Fieseler Fi 156, escaping to his own lines. Death over Piraeus Harbour By dawn on 20 April 1941, the Germans were well aware that British and Allied forces had begun preliminary withdrawal operations from ports in southern Greece. The Luftwaffe made substantial attacks against these departure points in a bid to prevent or forestall an evacuation. On Sunday 20 April, the Luftwaffe mounted mass attacks against Allied shipping in Piraeus Harbour. On this very morning, at roughly 05:00, large formations appeared over the capital, Athens. The remaining Allied