Experiencing a quite unaccountable sense of elation and fresh interest in life, Christobel, armed with her book on aviation, re-entered the four-wheeler. The Professor, absorbed in his own purchase, had not noticed her private transaction. He followed her into the cab, and made three ineffectual attempts to close the door. Just as the driver was slowly beginning to prepare to climb down, Mr. Taylor came across the crowded pavement, to their rescue; released the Professor's coat-tail, shut them in, and signed to the cabman to drive on. With a good deal of "gee-up" and whip-flourishing, they re-commenced to trundle. Mr. Taylor was not merely a provider of literature; he was also a keen observer of life, and of human nature. As Christobel leaned forward to acknowledge his help, and to smile her farewell, his expression seemed to say: "A four-wheeler, Professor Harvey, and the latest work on aviation! An unusual combination." "Very unusual," she said to herself, and smiled again. Then it seemed to her that her friend of the bookshop had said: "You will find what you want, on page 274." She knew he had not, as a matter of fact, mentioned any page; but the figures came into her mind. She opened the book, and glanced at page 274. It was headed: "Fine performances by Mr. Guy Chelsea." She shut it quickly. There was no room for the actual presence of the Boy in the Professor's four-wheeler. They lunched at a depôt of the Aerated Bread Company, close to Cannon Street station. While Christobel was struggling with a very large plateful of cold tongue, she suddenly remembered that one of the Boy's many plans had been to take her to lunch at his favourite restaurant in Piccadilly; where she would be able to order any dish she fancied, and find it better served than she had ever known it before; or to dine at the Hotel Metropole, where Monsieur Delma's perfect orchestra would play for her any mortal thing for which she chose to ask, and play it better than she had ever heard it played. These memories, and a really excellent cup of coffee, helped Christobel in her struggles with the round of cold tongue; and she looked across the little marble-topped table brightly at the Professor, and spoke with a cheerful hopefulness which surprised herself. But something, other than his own plate of cold tongue, seemed weighing on the Professor. He had become preoccupied and distrait. When they reached the Folkestone train, Christobel found out the cause of his preoccupation. "My dear Ann--I should say Christobel," remarked the Professor, hurriedly, as he put her into an empty compartment, and hesitated in the doorway. "I am always accustomed at this hour to have my pipe and a nap. Should you object, my dear Ann--er--that is, Christobel, if I sought a smoking compartment?" "Oh, _please_ do!" she exclaimed, eagerly. The idea of two hours of freedom and solitude suddenly seemed an undreamed of joy. "Don't think of me. I am quite happy here."