Jack followed his chum into the smoking compartment, and they had barely stowed their bags in the rack when Symonds observed, that sitting opposite were the two men he knew as "Doctor Daw" and "Tiger."

There was nothing remarkable in that, but Jack noted with intense surprise that Tiger was staring at Billy with an air of recognition. Jack wondered. Did Billy, by any chance, happen to know him? It did not seem likely, and yet—

At that moment Billy turned from the rack and sat down beside his pal. Tiger instantly averted his gaze and looked out of the window. He did not look at Billy again, although Jack watched him closely; and, what was more surprising, he did not seem to know the tall man at his side—Doctor Daw, as he had called him. Jack was puzzled more and more by this singularity as the train left Sydney and passed down the coast, for it seemed as if the two men knew nothing whatever of each other, and were even deliberately ignoring each other. This, despite the fact that Jack had overheard their recognition on the station, and had seen them enter the train in company.

Mystified as he was, the boy had for the present, other things to think of. Soon he was engrossed in conversation with Billy, and the train had halted at a little station some miles north of Deepwater, before anything occurred to disturb the even run of their journey.

The train had commenced to steam out of the station, when all at once the man Tiger, as if he had suddenly remembered something, leapt from his seat, grabbed a handbag from the rack, opened the door, and sprang out.

Jack, though taken aback by the suddenness of the move, was alert enough, mentally, to recall that the man had not had a bag at Sydney. The bag, therefore, was not his own; it was—

"Billy!" he yelled, "he's got your bag!"

Never was there a more magical transformation. Billy Faraday had been half dozing, moodily leaning back at the window, answering his chum mechanically. At Jack's words, he jumped as if a red-hot coal had been dropped down his collar, kicked open the door, and in a single bound gained the platform.

Jack was utterly amazed. Billy's action had been so quick, so marvellously prompt, that it had left him barely time to gasp. But then, Billy was always a fellow of impulse. Jack felt bound to follow his pal; Billy would be sure to get into some trouble or other.

And so Jack Symonds, prefect at Deepwater College, brilliant three-quarter and athlete, laughed his reckless laugh and followed suit.