Arrived at the cliff, he began walking along the edge, and in about an hour's time came to the end of it, for there it sloped down to the water, and before him, far as he could see, there was a wide, shingled beach with low sand-hills behind it. With a shout of joy he ran down to the margin, and the rest of that day he spent dabbling in the water, gathering beautiful shells and seaweed and strangely-painted pebbles into heaps, then going on and on again, still picking up more beautiful riffraff on the margin, only to leave it all behind him at last. Never had he spent a happier day, and when it came to an end he found a sheltered spot not far from the sea, so that when he woke in the night he would still hear the deep, low murmur of the waves on the beach. Many happy days he spent in the same way, with no living thing to keep him company, except the little white and grey sanderlings that piped so shrill and clear as they flitted along the margin before him; and the great sea-gulls that uttered hoarse, laughter-like cries as they soared and hovered above his head. "Oh, happy birds!" exclaimed Martin, clapping his hands, and shouting in answer to their cries. Every day Martin grew more familiar with the sea, and loved it more, and it was his companion and playmate. He was bolder than the little restless sanderlings that ran and flitted before the advancing waves, and so never got their pretty white and grey plumage wet: often he would turn to meet the coming wave, and let it break round and rush past him, and then in a moment he would be standing knee-deep in the midst of a great sheet of dazzling white foam, until with a long hiss as it fled back, drawing the round pebbles with it, it would be gone, and he would laugh and shout with glee. What a grand old play-fellow the sea was! And it loved him, like the big spotted cat of the hills, and only pretended to be angry with him when it wanted to play, and would do him no harm. And still he was not satisfied, but grew bolder and bolder, putting himself in its power and trusting to its mercy. He could play better with his clothes off; and one day, chasing a great receding wave as far as it would go, he stood up bravely to encounter the succeeding wave, but it was greater than the last, and lifting him in its great green arms it carried him high up till it broke with a mighty roar on the beach; then instead of leaving him stranded there it rushed back still bearing him in its arms out into the deep. Further and further from the shore it carried him, until he became terrified, and throwing out his little arms towards the land, he cried aloud, "Mother! Mother!"