The scenery now became wild beyond mere picturesqueness—it was startling, desolate, grand. Traces of old mines, once worked, but now deserted, were everywhere visible. Finally they came to a new “lead,” which was being successfully worked by the peons of Don Miguel. There were some forty of these men at work, under an overseer. Dr. Seltzer showed his companion the recent improvements which had been made; the machinery which he himself had introduced, and a portion of which he had invented; stating that, under the system which he himself had introduced, Don Miguel was growing a rich man faster than he previously had any idea was possible. The mountain-stream, spoken of as being visible at a great distance, glittering from hight to hight, was here made to do the unromantic work of washing the ore and grinding it. The overseer was called upon by the host to give every desirable information to the traveler, and here a long visit was made. Lunch was partaken of under the cool shadow of a ledge of rock; and then Dr. Seltzer proposed, if his visitor was not already too much fatigued, to take him higher up, to a spot which he had discovered only the day before, and which he had every reason to believe contained a richer deposit of silver than any vein heretofore opened—in fact, he thought a fortune lay hidden in the wild gorge to which he referred, and he anxiously invited the scientific observation of his guest.
This was just the opportunity for being alone with his man that Mr. Burton desired. It may seem strange that he proposed to confront the murderer with his guilt in this solitary manner with no witnesses to corroborate any testimony he might wring from the guilty; but the detective knew enough of human nature to know that the confronted criminal is almost always a coward, and he had no fear that this person, if guilty, accused of his false name and falser character, would refuse to do what he demanded of him. Again, his principal object, more important by far than the discovery of the actual hired assassin, was to gain from the frightened accomplice a full, explicit confession of who had tempted him to the crime—who was really the most guilty murderer—whose money had paid for the deed which his own dastardly hand had shrunk from. Strong in resources which never yet had failed him, Mr. Burton was anxious for the singular encounter he had devised.
Leaving all traces of man behind them, the two climbed a rugged path, and entered a cañon, through the center of which roared a foaming torrent, and which was so deep and sheltered that even at this noon-hour the path was cool and the sunlight tempered. As they walked or clambered on, both men gradually grew silent. Of what Dr. Seltzer might be thinking Mr. Burton did not know—his own mind was absorbed in the scene which he was awaiting the earliest fitting moment to enact. The doctor, who should have acted as guide, had, somehow, chanced to lag behind.
“Which direction shall I take?” asked Mr. Burton, presently.
“Ascend the narrow defile to the right,” called out his companion, pressing after him, “but be cautious of your footing. A misstep may hurl you upon the rocks below. In three minutes we shall be in a safe and beautiful region, with our feet, literally, treading a silver floor.”
As he spoke thus, he drew nearer, but the path was too narrow to allow him to take the advance, and Mr. Burton continued to lead the way.
The subtle perceptions of the detective, a magnetism which amounted almost to the marvelous, I have so frequently referred to, that my reader will understand how it was that Mr. Burton, thus in the van, and not looking at all at his companion, felt a curious, prickly sensation run along his nerves. He came to the narrowest part of the dangerous path. An immense rock reached up, a mighty wall, upon the right, and to the left, far below the uneven, stony and brier-grown ledge along which he was picking his steps, foamed and roared the torrent, over rocks which thrust themselves here and there above the yeasty water. Directly in front arose an obstacle in the shape of a projection of the rock some three or four feet in hight, covered with tough little bushes, one of which he took hold of to draw himself up by.
However, instead of pulling himself up, as his action seemed to indicate that he was about to do, he turned and grasped the arm of Dr. Seltzer. His movement was rapid as lightning, but it was not made a moment too soon. The arm which he held in a clasp of steel was raised to strike, and a Spanish dirk was in the hand.
A stealthy, murderous light, almost red in its intensity, burned in the eyes which now sunk before his. An instant the foiled assassin stood surprised; then commenced a struggle between the two men. Dr. Seltzer made desperate efforts to hurl his antagonist into the torrent beneath; but, though frantic with rage and hate, his violent exertions did not effect their object. On the contrary, Mr. Burton, calm and self-possessed, despite an instant’s astonishment, pressed his adversary backward along the narrow path until they were both on safe ground, in the middle of a little grassy plateau, which they had lately traversed, where he held him, having disarmed him of his knife.
What had caused his momentary astonishment was the fact that Dr. Seltzer knew him and suspected his object, which truth he instantly comprehended, upon turning and reading the murderous eyes that met his. Now, as he held him, he remarked,