Jack came down with a tremendous crash, scattering a pile of Patch's bottles right and left. There was a tinkle of broken glass and the sound of a mild explosion; through the ensuing cloud of smoke Septimus could be seen seated on the floor, vainly endeavouring to release his head from the photograph frame that Jack had let fall.

It was fortunate that Sir Isaac had had no glass in front of him, or the results might have been serious. As it was, he was hopelessly punctured now; the frame hung about Patch's neck like a grotesque collar.

"Ha, ha, ha!" The sight was so absurd that Billy could not check a laugh at the comicality of it all, but his laugh ended abruptly. At that moment the door opened, and a stern voice spoke.

"What is the meaning of this?"

Billy looked up in surprise. The voice was a strange one, but it carried a ring of authority.

"Just a slight accident, comrade," replied Patch. "We were hanging this picture, and regrettably it fell. Ah, off it comes at last! But I am afraid Sir Isaac is disfigured," he added sadly. "Yes, he does look rather cut up."

"I am your new history master," said the other, interrupting him. His rasping voice made Jack swing round with a gasp of surprise. "Daw is my name."

"Doctor Daw!" murmured Jack. The words were literally jerked out of him by surprise. He regretted them instantly, but it was too late. The amazing fact was that the man now standing in the doorway was actually the man who had travelled with them in the train—the fellow who had been so familiar with the bag-snatching Tiger on the station, and who had completely ignored him afterwards. Jack recalled now that the man had said that he was going to Deepwater. It was a somewhat startling coincidence, and it was no wonder that he had been impelled to whisper the name that Tiger had given the new history master.

Slight as that whisper had been, it had not escaped the ears of Doctor Daw, who gave a violent start and took a step forward. His mouth opened, as if he were about to say something, but no words followed. His eyes met Jack's in a troubled, questioning stare. He seemed to say, "How much do you know? What have you got hold of?" And then, on the verge of an outburst, he recovered himself.

"I have a new study-mate for you," said he quietly, although his eyes still glittered angrily. "A new boy to the college, and from New Zealand, who will be in your form. Fane is his name—but no doubt he will introduce himself."