The other thing that the dining-room contained was a large crystal vase, which stood in the window. It had seven sides, and was so large round that Oscar could not make his arms meet about it. It was filled with the purest water, and at the bottom were sand and pebbles, and delicate seaweeds, red and green, and pieces of rock covered with curious mosses and tinted lichens. It was like a little sea, only that there were no living animals in it. But under the shadow of one of the rocks lay a large pearl shell, which Oscar fancied must hold some living thing, although, often as he had watched it, it had never yet moved or opened. But the boy had faith and patience, and every new day he went to the vase, in the hope that now at last something might have come from the pearl shell. It lay quiet, however, and kept its secret to itself. It must certainly be a pleasant secret, Oscar thought, for the shell was exquisitely curved, and its pearly sides shone with a delicate lustre. And the more he pondered over the matter, the surer he became that the vase must have been given for the sake of the shell, and that by-and-by the shell would show why it was there. Sometimes he felt tempted to take it out of the water, and try whether he could see inside of it. But he could never quite bring himself to do this, because, though the vase and the shell were his own, he felt that they had been given to him to look at, and not to meddle with. In his book, too, he saw that the night always comes before the morning, and the winter before the spring; and though he did not understand why that should be so--why the morning should not begin just after the sun had set, and the spring buds and flowers come out as soon as the red and yellow leaves of autumn had fallen--yet he saw that one wave followed another to break against the shore, and that every flower was a bud before it was a blossom, and that no happiness was so happy as that which had been waited for; so he believed that the secret of the shell would disclose itself when the right time should come, and that to try to find it out beforehand would perhaps be to lose it altogether. Moreover, was not the shell beautiful enough as it was?