As the three cities in the league are all situated upon the beautiful lake named above, aquatic games hold a high place in the estimation of the rival associations in the league. Fun and sports fill this second volume. "The Girls of Central High at Basket Ball; Or, The Great Gymnasium Mystery," the third book, tells of several very exciting games in which the basket-ball team of Central High takes part, and the reader learns, as well, a good deal more about the individual characters of the girls themselves and of some very exciting adventures they have. "The Girls of Central High on the Stage; Or, The Play That Took the Prize," the fourth volume in the series, is really Jess Morse's story, although Laura and their other close friends have much to do in the book and take part in the play which Jess wrote, and which was acted in the school auditorium. It was proved that Jess Morse had considerable talent for play writing, and the professional production of her school play aided the girl and her mother over a most trying financial experience. The fifth volume, "The Girls of Central High on Track and Field; Or, The Champions of the School League," is an all around athletic story in which rivalries for place in school athletics, excitement and interest of plot, and stories of character building are woven into a tale calculated to hold the attention of any reader interested in high school doings. During the summer previous to the opening of the present story in the series, these friends spent a most enjoyable time camping on Acorn Island, and the sixth tale, "The Girls of Central High in Camp; Or, The Old Professor's Secret," is as full of mystery, adventure, and fun as it can be. Since the end of the long vacation the Girls of Central High, as well as the boys who are their friends, had settled down to hard work both in studies and athletics. Ice had come early this year and already Lake Luna was frozen near the shore and most of the steamboat traffic between the lake cities had ceased. The great pre-holiday Red Cross drive had now enthralled the girls of Central High, as well as the bulk of Centerport's population. Everybody wanted to put the city "over the top" with more than its quota subscribed to the fund. In the first place, the boys' and girls' athletic associations of Central High were planning an Ice Carnival to raise funds for the cause, and it was because of that exhibition that Chet Belding and Lance Darby wished to get down to the ice that evening and try their own particular turn, after the shopping expedition that also had been planned. As it happened, however, neither the shopping nor the skating was done on this particular Saturday night. As Bobby Hargrew ran to telephone to the hospital, Short and Long had grabbed the wrists of his two older and taller boy friends and led them out of the crowd in a very mysterious way. "Did you get a good look at that car?" he whispered to Chet and Lance.