"I think it is going to be a dance. I heard the boys doing their steps when I went in last evening to find out whether Jack liked blue or yellow best, so I could put the bow on his pen-wiper," declared Merry, knitting briskly away at the last of the pair of pretty white bed-socks she was making for Jill right under her inquisitive little nose. "They wouldn't have a party of that kind without Jack and me. It is only an extra nice tree, you see if it isn't," answered Jill from behind the pillows which made a temporary screen to hide the toilet mats she was preparing for all her friends. "Every one of you is wrong, and you'd better rest easy, for you won't find out the best part of it, try as you may." And Mrs. Pecq actually chuckled as she, too, worked away at some bits of muslin, with her back turned to the very unsocial-looking group. "Well, I don't care, we've got a secret all our own, and won't ever tell, will we?" cried Jill, falling back on the Home Missionary Society, though it was not yet begun. "Never!" answered the girls, and all took great comfort in the idea that one mystery would not be cleared up, even at Christmas. Jack gave up guessing, in despair, after he had suggested a new dining-room where he could eat with the family, a private school in which his lessons might go on with a tutor, or a theatre for the production of the farces in which he delighted. "It is going to be used to keep something in that you are very fond of," said Mamma, taking pity on him at last. "Ducks?" asked Jack, with a half pleased, half puzzled air, not quite seeing where the water was to come from. Frank exploded at the idea, and added to the mystification by saying,-- "There will be one little duck and one great donkey in it." Then, fearing he had told the secret, he ran off, quacking and braying derisively. "It is to be used for creatures that I, too, am fond of, and you know neither donkeys nor ducks are favorites of mine," said Mamma, with a demure expression, as she sat turning over old clothes for the bundles that always went to poor neighbors, with a little store of goodies, at this time of the year. "I know! I know! It is to be a new ward for more sick folks, isn't it, now?" cried Jack, with what he thought a great proof of shrewdness.