For three whole months school life had gone on "without a hitch," as Jabez said triumphantly, and the pupils and teacher together were beginning to discuss the propriety of giving a little time to special preparation for the closing examination, when something happened. A thaw came--a sudden fall of warm rain, which lasted a day and a night, and covered the ice on the mill-pond with water, and the neighbouring meadows as well. And then the frost came again strong and sharp, making mill-pond and meadows sheets of shining silver; and for once everything happened just right, for it was full moon, with clear skies--the brightest of moonlight. Of course every scholar in the school was bound to be on the ice, and a great many besides; and Jabez and a few others voted themselves into the office of a safety committee to see to the rest, to keep the naughty ones out of mischief and the heedless ones out of danger. There were not skates enough in the town of Halsey for half who were there, but there were a good many pairs, and there were sleds, and those who had neither skates nor sleds could slide on their own feet; and all expected a good time, and most of them had it. Fidelia was not there the first night, but, yielding to entreaty, she came the second night, and enjoyed it as well as any of them all. But she was not there on the third night, when something happened. No one else ought to have been there, for the frost had gone, and there was water over the ice on some parts of the pond. The meadow ice was safe enough, but on the pond, where the water was not, the ice was like glass, and thinner than they knew. Especially was this the case where the weir brook fell into the pond, a little below the bridge, at the place where the boys had taken their sleds to "coast" down the hill and over the sloping bank with an impetus which sent them flying over to the other side of the pond. Young Van, preferring to-night his sled to his skates, was there with the rest, and either through bravado or want of skill, steered, or let his sled take its own way, to the open water where the brook came in. A cry from his companions came too late to warn him, but it warned the others at a distance that some one was in danger; and several were on the spot in a minute or two, and among the rest Jabez. "Who is it? Young Van? Yes, he is just the fellow for such a job," said he, taking off his skates and plunging into the water where the boy's sled was floating, the ice cracking and crumbling beneath his feet as he ran. The water was not very deep, and young Van, gasping and shivering with terror and cold, was passed over to the hands waiting for him. "And I say, you boys, keep back. The ice at the edge is none too strong to bear the half of you. Be off home, or your mothers will be here before you know it. I mean to go the other way, if I can, and save a journey."