"You should not eat after ten, Jack. But come along. I must look over the place, and talk at the same time," and with that intention Cora started on her tour of home inspection, while Jack made all the noise he possibly could make (which was not a little), running through the house after her. Margaret, of course, knew what the tumult was about. She always declared that boys went to college to learn how to make unearthly noises. Cora found little out of place. Margaret was an old and trusted servant, and, in the absence of her mistress, could always be depended upon to look after the "children." "And now I must go and get the folks together," remarked Cora. "Can you come, Jack?" "And help you pick up the humans? Well, guess I may as well, as I am to be in the collection. But what is it all about?" In a girl's way Cora told of the plans for the auto fete, and of Dr. Bennet wishing to have the Chelton boys meet his student friends. "First rate!" responded Jack, when Cora paused for breath. "I rather fancy the idea of going after some of the girls. I cannot help but agree with Ed that all the girls should not leave town at once--you should take turns." "But how about Clip? The others imagine that she makes up for quite a number--with you and Walter." "There you go again, picking a fight," and he laughed honestly. "Now, Cora, Clip is just Clip, no more and not one whit less, but she has been so busy--oh, so tremendously busy!" He was getting into his motor togs, and Cora was already equipped for her ride about Chelton. "Say, sis," he added, "did I tell you I have my suspicions about the loss of Wren's book? Did she describe to you the pair who last signed the contract?" "No," answered Cora, now fully interested. "Well, she told me it was a fellow with bent shoulders, and a girl with red hair. Now, who does that fit?" Cora thought for a moment. Then her face showed quicker than her words that she guessed who might answer those descriptions. "Sid Wilcox and Ida Giles!" she exclaimed. "But what motive could they have?" "Sid Wilcox and Rob Roland are termed the Heavenly Twins, they are so often together. Now, Rob Roland has been the paragraph and the period, so to speak, in this story," said Jack meaningly. "But why should Ida stoop to such a thing?" "Didn't you run over her dining-car one day early this summer?" Jack reminded her. "Or was it Bess? No matter just who, it was one of the motor girls. And, besides, you did not ask her to go on the run." "If I thought Ida Giles knew anything about that book I would go directly to her house and demand an explanation," said Cora, flushing. "Ida is too apt to be influenced by Sid Wilcox. I thought she had seen enough of the consequences of such folly." "Oh, Ida is ambitious in that line," replied the cool, deliberate Jack. "Well, let us start," suggested Cora. "I have quite some ground to cover. Dr. Bennet has agreed to find and fetch Clip."