"Mercy!" cried Frankie, "they'll be wanting to make up the cots before we are out of them in the morning. Come on! let's all turn in." There was a general roll-call at daybreak the next morning. Wynifred and Frank were not the only ones to get up as soon as day approached, although to them had been allotted the task of going to Windmill Farm for the milk and the day's supply of vegetables. They had agreed the night before to venture into the water. The boys always bragged about this early morning dip, which was a rule of their camp. "I don't see why we shouldn't be able to do anything those boys do," declared Bess, with her usual contempt for the vaunted superiority of the other sex. "If they can run down and plunge right into the water, right out of bed, why can't _we_?" So even Grace--who had her doubts about it--ventured on this second morning. They slipped out of their sleeping clothes and into bathing suits. There _was_ a little chill in the air; but Wyn assured them the water would be warmer than the air and--if they remained in half an hour, or so--the sun would be up and his rays would warm them when they came out. And Wyn's prophecy was proven right. The six girls disported in the lake like a flock of ducks. Mrs. Havel, however, would not let them remain more than twenty minutes. The sun had shot up, then, and already the green knoll was warm in his first rays. Wyn and Frank scurried into their clothes and hurried away to the farm for the milk and vegetables. Frank saw the windmill on the summit of the hill, and nothing would do but she must run up and inspect it. The breeze was rising and the farmer, who was likewise the miller, was preparing to "grind a grist." "We've got a good bit of grain on hand; but we've not had wind enough of daytimes lately to grind a handful," he said. "I can't invite you inside, young ladies, because when they set up this mill for me they made the door, as you see, right behind the sails. When the arms are in motion I am shut in till the grist is ground; or I stop the sails with this lever just inside the door--d'ye see?" As the girls went back toward the house the arms began turning with a groaning sound. The wind became fresher. Round and round the long arms turned, while the canvas bellied like the sails on a boat. Louder and louder grew the hum of the mill. The miller threw in the clutch and the stones began to grind. They heard the corn poured into the hopper, and then the shriek of the kernels as they were ground between the stones. The whole building began to shake. "What a ponderous thing it is!" exclaimed Frank. "And see! there's a tiny window in the roof facing the lake. I imagine you could see clear to Meade's Forge from that window."