As she listened to the music and gazed into the misty garden, she saw, as she thought, the boys standing in the shadow of the black Cedar of Lebanon across the way. She leaned forward, wondering why they lingered there so silently. It was not easy to see in the on-coming darkness--surely there were _three_ figures, and two of them looked like girls. Her heart gave a sudden jump--yes, she could plainly make out two girls and a boy. She slipped through the window and crossed the terraced drive. * * * * * There they were--dear Prue, with Grizzel clinging to one arm, and Hugh in the background--oh, how Mollie longed to keep them! "I was thinking of you, Prue," she said eagerly, "I wanted you so much. If you could only stay!" Prue shook her head, with a smile. "No, we have only come to say good-bye, Mollie. Your Time-travelling is over for this time, you won't come to our Time any more. Did you like it?" "I _loved_ it," Mollie answered fervently, not pausing to ask herself whether it was the Time or the children that she had loved. "If only it could be _now_, Prue, so that you could stay!" But Prue shook her head again: "We've got to go. Perhaps some day we will meet again--Time-travellers often do. I think that's why--that's why----" she knit her pretty brows in the effort to express a difficult thought. "Hush!" Grizzel said suddenly, "she is singing 'I shot an arrow into the air'; Mamma sings that and I love it. I want to listen; may we go nearer?" They tip-toed across the gravel, and stood in the shadow of the lamp-lit window. "I breathed a song into the air, It fell to earth I know not where, For who has sight so swift and strong That it can follow the flight of a song? "Long, long afterwards, in an oak I found the arrow still unbroke. And the song from beginning to end I found again, in the heart of a friend." "I love that," Grizzel whispered. "Papa says you often do find the song long, long afterwards. I think it's something like casting your bread upon the waters, though I never could understand why they chose _bread_. I shouldn't think there would be much of it left after many days in the water. I like a song better." Hugh had stepped nearer to the window, and was observing the interior of the room with curious eyes. "Who's the old buffer with white hair?" he asked. Mollie began to laugh, but suddenly stopped. She looked from the boy to the man--so there _were_ two Hughs! "He is a Time-traveller," she answered softly, "but he has travelled the other way, forwards, you know. He has invented a lot of things about flying." "Has he!" exclaimed Hugh. "That old chap!" He leaned forward and gazed more intently at the white-haired man. "I wish I was him," he said wistfully! "Cooo-eee!" The call seemed to come from far away, muffled, perhaps, by the night air. "They are calling us," said Prue. "We must go--come, Hugh. Good-bye, Mollie, goodbye."