All of this must have happened at about three o'clock in the night. This much was established afterwards from the evidence of Gillis, the caretaker. When he first heard the sounds he had looked at his watch and noticed that it was half-past two; the watch he knew was three-quarters of an hour slow three days before and had been gaining since. The exact time at which Gillis heard footsteps in the bank and started downstairs, pistol in hand, became a nice point afterwards in the cross-examination.

But one must not anticipate. Pupkin reached the iron door of the bank safe, and knelt in front of it, feeling in the dark to find the fracture of the lock. As he knelt, he heard a sound behind him, and swung round on his knees and saw the bank robber in the half light of the passage way and the glitter of a pistol in his hand. The rest was over in an instant. Pupkin heard a voice that was his own, but that sounded strange and hollow, call out: "Drop that, or I'll fire!" and then just as he raised his revolver, there came a blinding flash of light before his eyes, and Peter Pupkin, junior teller of the bank, fell forward on the floor and knew no more.

At that point, of course, I ought to close down a chapter, or volume, or, at least, strike the reader over the head with a sandbag to force him to stop and think. In common fairness one ought to stop here and count a hundred or get up and walk round a block, or, at any rate, picture to oneself Peter Pupkin lying on the floor of the bank, motionless, his arms distended, the revolver still grasped in his hand. But I must go on.

By half-past seven on the following morning it was known all over Mariposa that Peter Pupkin the junior teller of the Exchange had been shot dead by a bank robber in the vault of the building. It was known also that Gillis, the caretaker, had been shot and killed at the foot of the stairs, and that the robber had made off with fifty thousand dollars in currency; that he had left a trail of blood on the sidewalk and that the men were out tracking him with bloodhounds in the great swamps to the north of the town.

This, I say, and it is important to note it, was what they knew at half-past seven. Of course as each hour went past they learned more and more. At eight o'clock it was known that Pupkin was not dead, but dangerously wounded in the lungs. At eight-thirty it was known that he was not shot in the lungs, but that the ball had traversed the pit of his stomach.

At nine o'clock it was learned that the pit of Pupkin's stomach was all right, but that the bullet had struck his right ear and carried it away. Finally it was learned that his ear had not exactly been carried away, that is, not precisely removed by the bullet, but that it had grazed Pupkin's head in such a way that it had stunned him, and if it had been an inch or two more to the left it might have reached his brain. This, of course, was just as good as being killed from the point of view of public interest.

Indeed, by nine o'clock Pupkin could be himself seen on the Main Street with a great bandage sideways on his head, pointing out the traces of the robber. Gillis, the caretaker, too, it was known by eight, had not been killed. He had been shot through the brain, but whether the injury was serious or not was only a matter of conjecture. In fact, by ten o'clock it was understood that the bullet from the robber's second shot had grazed the side of the caretaker's head, but as far as could be known his brain was just as before. I should add that the first report about the bloodstains and the swamp and the bloodhounds turned out to be inaccurate. The stains may have been blood, but as they led to the cellar way of Netley's store they may have also been molasses, though it was argued, to be sure, that the robber might well have poured molasses over the bloodstains from sheer cunning.

It was remembered, too, that there were no bloodhounds in Mariposa, although, mind you, there are any amount of dogs there.

So you see that by ten o'clock in the morning the whole affair was settling into the impenetrable mystery which it ever since remained.

Not that there wasn't evidence enough. There was Pupkin's own story and Gillis's story, and the stories of all the people who had heard the shots and seen the robber (some said, the bunch of robbers) go running past (others said, walking past), in the night. Apparently the robber ran up and down half the streets of Mariposa before he vanished.