this stronghold of Cetniks held for the Partisans. In early April, before this could be arranged, he was ordered to London for further discussions. (A stop-over in Algiers meant a specially arranged radio phone call with Churchill. Maclean, who hated telephone conversations, managed to wring amusement from the mix-ups of codes and scrambling. Churchill's son was referred to as Pippin.) They arrived in England to find "the whole of the southern counties [were] one immense armed camp". Despite the tension over the anticipated invasion of Normandy, the press and officials were eager to hear the Yugoslav story, and Maclean and Velebit had a busy time; even U.S. General Dwight D. Eisenhower wanted to meet them. At Chequers Maclean participated in attempts to build a possible compromise between the Royalist government in exile and the Partisans. As Maclean was preparing to go back to Bari and Bosnia, he received news that the enemy had made a fierce attack on Partisan headquarters at Drvar, later known as the Knight's Move. "It was the kind of communication that took your breath away." When he got the full story from Vivian Street, he heard how the German bombers had made a full and thorough attack, and, after Tito and the Partisans escaped, revenged themselves on the civilians, massacring almost everyone, men, women, and children. In the week that followed the attack on Drvar, Allied planes flew more than a thousand sorties in support of the Partisans. Tito, harassed and harried through the woods, reached the decision that he needed to leave and establish his headquarters in a place of security. Accordingly, he asked Vivian Street to arrange for the Allies to evacuate him and his staff, which they did. Maclean, on his way back from London, caught up with the Marshal at Bari, and found him proposing to establish his base on Vis. The Royal Navy took him across in fine style, with a memorable wardroom dinner, at which Tito recited, in English, "The Owl and the Pussycat". Negotiating the future of Yugoslavia Vis had been transformed in the intervening months, becoming a substantial base for aircraft, commandos, and navy boats "engaged in piratical activities against enemy shipping up and down the whole length of the Jugoslav coastline from Istria to Montenegro". Meanwhile, other fronts of the war were progressing rapidly, and the Germans were hard-pressed. It was necessary to discuss the future shape