"Oh, I'll worry along," he replied. His long arm stretched across, and a ten-dollar bill fell in her lap.

"No, no," she said, "I was joking. I have plenty——"

She stopped suddenly. Somewhere toward the head of the train a revolver barked, and barked again. Then came a staccato fusillade.

Swiftly the man across the aisle reached for his bundle, tore it open, and plucked from it a long-barrelled, flat-handled, venomous automatic pistol and a box of cartridges. He slid out the clip, snapped it back, and went down the car in long pantherlike bounds, bending half double.

Up forward the shooting, which had ceased, began again. Suddenly there broke into it the voice of another weapon, rapid and sustained as the roll of an alarm clock. Other guns chimed in. A miniature battle seemed to be in progress. And then it died. An occasional shot came from the distance. Silence ensued.

Men whose curiosity got the better of prudence left the car and returned. The train robbers were gone. It was thought that two or three were wounded. It was the express messenger who had started the shooting. He had got loose, somehow, in his rifled car, got a gun from a drawer, and opened fire. He was shot through the shoulder. A brave fellow, that. The company should do something for him. Two others of the train crew were hit.

Clyde awaited the return of the man across the aisle. The train began to move, gathered way, and thundered on. Still he did not return. The porter began to make up the berths. To him she applied for information. He knew nothing. The conductor was in equal ignorance. Inquiries throughout the train were fruitless. The man of the seat across the aisle was not forthcoming. His few belongings, which threw no light on his identity, were gathered up to await his appearance. It was suggested, to Clyde's indignation, that he was an accomplice of the robbers, but in what manner was not clear.

And so Clyde Burnaby went on to the coast with ten dollars which she did not in the least need. She neither saw nor heard more of their owner; but, though it was unlikely she should meet him again, she kept the identical bill. On her return she tucked it away in a drawer in her writing desk; and when occasionally she noticed it there it was merely to wonder, with some self-reproach, how its owner had fared until the next pay day.

CHAPTER II

In a secluded corner of a certain club billiard room two middle-aged gentlemen padded around and around a table, and poked at balls. Both appeared bored by the amusement. Their skill was little, and their luck was rather less, so that a ball rarely found a pocket. Between strokes they carried on a conversation having to do with such light and frivolous topics as bond issues, guarantees thereof, sinking funds, haulage rates, and legal decisions and pending legislation affecting transportation. Or it might be more accurate to say that one endeavoured to engage the other in conversation on these esoteric matters, at which the other repeatedly shied, evincing a preference for those of more general human interest.