At length he made the discovery that the water of the stream was perpetually running away. If he dropped a leaf on the surface it would hasten down stream, and toss about and fret impatiently against anything that stood in its way, until, making its escape, it would quickly hurry out of sight. Whither did this rippling, running water go? He was anxious to find out. At length, losing all fear and fired with the sight of many new and pretty things he found while following it, he ran along the banks until, miles from home, he came to a great lake he could hardly see across, it was so broad. It was a wonderful place, full of birds; not small, fretful creatures flitting in and out of the rushes, but great majestic birds that took very little notice of him. Far out on the blue surface of the water floated numbers of wild fowl, and chief among them for grace and beauty was a swan, pure white with black head and neck and crimson bill. There also were stately flamingoes, stalking along knee-deep in the water, which was shallow; and nearer to the shore were flocks of rose-coloured spoonbills and solitary big grey herons standing motionless; also groups of white egrets, and a great multitude of glossy ibises, with dark green and purple plumage and long sickle-like beaks. The sight of this water with its beds of rushes and tall flowering reeds, and its great company of birds, filled Martin with delight; and other joys were soon to follow. Throwing off his shoes, he dashed with a shout into the water, frightening a number of ibises; up they flew, each bird uttering a cry repeated many times, that sounded just like his old father's laugh when he laughed loud and heartily. Then what was Martin's amazement to hear his own shout and this chorus of bird ha, ha, ha's, repeated by hundreds of voices all over the lake. At first he thought that the other birds were mocking the ibises; but presently he shouted again, and again his shouts were repeated by dozens of voices. This delighted him so much that he spent the whole day shouting himself hoarse at the waterside. When he related his wonderful experience at home, and heard from his father that the sounds he had heard were only echoes from the beds of rushes, he was not a bit wiser than before, so that the echoes remained to him a continual wonder and source of never-failing pleasure.