So Omo took out the silver key, fitted it into the keyhole at the base of the fountain, and turned three times to the right, then three times to the left, and then _three_ times in the middle, and bing--with a clink and a chink, and a tinkle, the fountain of riches began to spout. And the minute it did that, the Night Watchman grabbed Omo's cap from his head, and the Doodab snatched the key from his hand. "There," said the Doodab of Ootch, hurling the key as far as he could, "I guess you won't turn off the fountain until you find that key." "Yes," said the Night Watchman, hurling Omo's cap as far as _he_ could, "and I guess you won't fill your cap until you find your cap either. And by the time you do I'll have my pockets full of gold pieces." "And," put in the Doodab, "I'll have my sacks full also." Well, you may be sure Omo was very angry at the trick played on him, and started after the cap and key as quickly as he could. It did not take him long to find his cap, but he simply could not find the key. "See here," he cried, running back to where the Doodab was tying up the necks of his sacks, which were now filled to bursting, "you've got to help me find that key. I promised to turn this fountain off and I'm going to do it." "All right," said the Doodab, "I'll help you. I've got gold enough here to last me the rest of my life so I don't care how soon you turn it off." "Nor I," said the Night Watchman. "I've got all my pockets full, and my stockings full besides, so stop the old thing whenever you want." But Omo, and the Doodab, and the Night Watchman, although they searched and searched, could not find the key anywhere, and all the while the fountain was spouting gold pieces in a stream a hundred feet high, and so thick it looked like smoke. "My sakes!" said the Doodab of Ootch, "I don't know how you'll ever stop it! I'm sorry I threw the key away now! But, anyhow, the worst that can happen if the fountain keeps on spouting, is to give the town a spell of nervous prosperity." But alas, the Doodab of Ootch did not know what he was talking about, for the fountain kept on spouting and spouting, faster and faster; and presently the streets were knee deep in gold pieces. It was awful. "Say," said the Night Watchman to Omo, "are you sure you turned the fountain on all right? It never spouted like this before. We've always been able to pick up the gold pieces as fast as they came out." "Of course I turned it on right," said the boy. "I turned the key three times to the right and three times to the left, and then _once_ in the middle." "No such thing!" shrieked the Doodab. "No such thing! You turned it _three_ times in the middle! I watched you!" "Oh," cried Omo, in a horrified tone, "did I? Then--then _that's_ why the gold is coming out so fast. And it's getting deeper all the time." "It'll soon be up to our necks!" cried the Night Watchman.