`` Then , when it is lighted , I 'll get up a nice warm supper for Mother and Uncle Martin . '' Mary Margaret sat down by the kitchen window to watch . Minute after minute passed , but no light flashed out on the Big Dipper . What was the matter ? Mary Margaret began to feel uneasy . It was too cloudy to tell just when the sun had set , but she was sure it must be down , for it was quite dark in the house . She lighted a lamp , got the almanac , and hunted out the exact time of sunsetting . The sun had been down fifteen minutes ! And there was no light on the Big Dipper ! Mary Margaret felt alarmed and anxious . What was wrong at the Big Dipper ? Was Uncle George away ? Or had something happened to him ? Mary Margaret was sure he had never forgotten ! Fifteen minutes longer did Mary Margaret watch restlessly at the window . Then she concluded that something was desperately wrong somewhere . It was half an hour after sunset and the Big Dipper light , the most important one along the whole coast , was not lighted . What would she do ? What could she do ? The answer came swift and dear into Mary Margaret 's steady , sensible little mind .
She must go XXXXX the Big Dipper and light the lamps !
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