“I heard a sudden outburst of firing, Captain Percival, and it is continuing.”

Followed by all the others, Frank ran up to the top of the tower. There was no doubt that a tough fight was going on: the reports of the muskets came in quick succession; sometimes there would be a short pause, and then half a dozen shots would ring out close together.

For three or four minutes not a word was spoken; then, as the reports became less frequent, Sarto exclaimed, “It is nearly over: Rubini has done his work.”

Frank was silent, and Sarto added, “Do you not think so, Percival?”

“I hope so,” Frank replied, “but I am very much afraid that it is not so. Had Rubini taken the brigands completely by surprise, there would have been one crashing volley, then he would have rushed in with the bayonet, and it would have been all over in two minutes. Some of the brigands might have escaped, but there can have been no pursuit, for in the darkness in the forest there would have been no chance whatever of overtaking men perfectly familiar with it. No, I think that they have failed in taking them by surprise, and if they did fail to do so, the brigands would either have moved off, in which case there would have been no fight at all, or have laid an ambush for our party, which would account for the heavy firing we have heard. Whether the ambush was successful, or whether Rubini has beaten his assailants off, is uncertain.”

The others saw the justness of his reasoning, and remained silent. An occasional shot was still heard.

“What do you think that means?” Maffio asked—for both he and Sarto were beginning to feel a profound respect for the opinion of their companion.

“It means, of course, that one party or the other is pursuing fugitives, and I am afraid that it is a bad sign, for, as I have just said, our men would hardly try and chase these brigands through the wood they know very well.”

They waited another five minutes. Still shots were occasionally heard.

The conviction that Frank’s worst anticipations had been but too surely verified, forced itself upon the others.