"Who is that Mr. Clark, anyway? How did he know who I was? Since Hallen's men found me at the farm-house this man Clark--this agent--has had a lot to say."

"He is a man by the name of Oakes," I said.

O'Brien, or rather Larkin, looked at me a moment.

"Quintus Oakes?"

"The same."

"The deuce you say! No disgrace to me then. I understand things now. But I should have suspected."

The murderer reached the bridge and, hesitating, stooped suddenly at its near side. He had evidently picked up something from under one of the logs that formed the span. He straightened up and, turning, suddenly fired at Oakes, who was rapidly approaching. The deep tones of a heavy revolver were unmistakable. Maloney had secured his murderous weapon when he stooped; he had had it in hiding under the log. He was armed now with a weapon of terrible possibilities. In another instant he was across and mounting the green sunlit slope beyond. A hundred feet behind was Quintus, untouched by the bullet that had been sent his way. A few steps, and he reached the other side, but as he struck the ground, the bridge--frail thing that it was--loosened from its centre support and went crashing into the pond, leaving Hallen, who was close behind Oakes, on this side of the bridge with the rest of us. Oakes was alone, pursuing the murderer up the slope of the hill on the other side of the water, facing us. We saw him turn, as the bridge fell, and look at us; then he made a sweeping gesture toward the north and south, and turned again after the murderer, who was just half-way up the slope now; his body dotting the surface of the ground with a shadow at his side--a shadow of himself--company in the race for freedom.

We all simultaneously interpreted the gestures made by Oakes, and Hallen dashed to the north end of the pond to skirt it, while Martin and Moore dashed for the southern end, leaving Elliott, Larkin and myself standing where we commanded full view of what was coming. We were conscious of several other figures dashing by us, and we knew that his men were straining every nerve and muscle to reach Oakes in his dangerous position.

It was a long run to skirt either end of the pond, and to swing around the opposite sh.o.r.e, and thence up the sloping sides to Quintus's aid. We three remaining behind were anxious beyond expression. I leaned heavily on Elliott, and really prevented him from joining in the chase, where he would have been useless; the others were so much fleeter of foot.

"G.o.d--that man Oakes is alone with the murderer!" cried Larkin. "He is too good a man to lose his life in the fight that is coming. Look!"

We saw Maloney halt and face about. Then came a slight flash, followed by the heavy report of the revolver in his hand.

Quintus was running slowly up toward him and was perhaps one hundred feet away. At the report he staggered, and dropped upon the green, slippery sward.

"He is wounded," cried Elliott.

I felt sick at heart and weak, and sat down, Larkin by my side; we two were powerless, being only convalescent.

"An elegant shot! That Maloney is a crack one," cried the detective.

"Yes," said Elliott; "it was determined before that Mark's murderer was a good shot."

Then came another report, and we saw that again the murderer had fired.

Oakes remained quiet. His body showed sprawled on the hill-side.

"d.a.m.nation!" cried Elliott. "Is Oakes dead? He does not answer with his revolver."

"No," cried Larkin. "I saw him move, and see--he is braced to prevent himself slipping down the hill. He knows he is a poor target, and is not anxious to move lest he slide into the pond. That gra.s.s is frosty and very slippery."

Then came the delayed crack of Quintus's weapon, and Maloney sprang into the air as he ran. He now went slowly and painfully, lurching forward along the crest of the hill.

"Slightly wounded, thank Fate--but Oakes could have killed him had he wished," cried Larkin.

We saw Quintus rise and follow Maloney, then drop to his chest again, as the latter wheeled and fired three shots rapidly at him in delirious excitement.

Oakes remained quiet and huddled, and despite the fact that Maloney was now an excellent target, he did not fire.

"Oakes is. .h.i.t badly," exclaimed Elliott. Then the speaker did an unexpected thing. Seizing his revolver, he discharged the weapon again and again in the direction of Maloney. "A long shot," he muttered, "but I'll keep him guessing."

We could see the bullets. .h.i.t somewhere near the fugitive, for he seemed disconcerted and turned toward the northern end of the pond, to run in that direction; he was now outlined on the crest of the hill. We heard another shot ring out--a shot sharp, staccato it was; and we then emitted a yell, for we knew by it that Oakes was alive. Maloney fired again, and again Elliott, by our side, tried two more long shots with his revolver.

We heard Oakes's voice, clear and firm it came, wafted across the pond.

"Don't shoot again. He has no more ammunition. I will get him."

And Elliott, in suppressed excitement, exclaimed: "He was drawing Maloney's fire all the time. He was not wounded."

"Yes, he knew Maloney had the old six-shooter, and he knows it is empty now."

"That Oakes keeps everything in mind," said Larkin. "He is a good one."

Then we saw the figures of the runners skirting the northern end of the pond. Hallen was leading. He fired at Maloney, evidently not having understood Oakes's word, and again came that clear voice across the pond.

"Don't fire, Hallen; remember, he is a lunatic and he can't get away now."

We saw Oakes rush to close in on Maloney, but the latter met his attack, and the detective was borne to the ground heavily.

"Shoot, Oakes, shoot!" I yelled, as did Hallen; but Quintus responded not.

We saw that the fight was furious, but were unable at first to distinguish the figures as they remained on the ground. They were locked in one another's embrace in a deadly, awe-inspiring struggle. Then across one man's neck we saw a forearm--the cuff was shining in the sunlight--and Elliott cried out: "That is Oakes."

The two rose to their feet, powerful black objects, and by the outline we recognized the tall figure of our friend as they swayed and surged, gradually slipping and sliding down the incline, toward the deep waters of the pond below.

"Oakes has got him," cried Larkin, "choking him. Look at them!"

We saw the murderer's body arch sideways and backward, with Oakes's hands around his neck.

As Maloney's body came down, down to the ground again, Larkin and Elliott by my side shouted in admiration at the power and skill displayed.

Suddenly like a flash the maniac turned, twisted, and next moment encircled Oakes's body with both his arms, and rolled toward the water with him.

"He is going to drown Oakes--see!"

The words came in a hurried gasp from Elliott, who was throwing off his coat and his shoes in a movement quick as the thought that had come to him.

"He's too good a man," he cried, and with a sudden rush Elliott was at the water's edge and into the pond--swimming with strong overhanded strokes, head low and sideways, toward the opposite sh.o.r.e.

Larkin and I could scarcely believe our eyes. The man was apparently gifted with great powers, for he cut through the water steadily, surely, with a rapidity that was amazing. Over opposite, the fight was furious, always nearing the edge of the pond.

Help for Oakes was no nearer than Hallen, who, we could see, was dashing around the northern end of the pond in a desperate race to save him. On the other end, moving like the wind, but farther away from the fighting men, I distinguished young Martin leading several others in the race for life. And down beneath us, quarter way across the pond was the solitary swimmer, lifting his shoulders well out of the water each time his stroke reached its limit--each moment advancing steadily, surely. I saw at a glance that Oakes was doomed--Elliott could not reach him, neither could Hallen. Larkin by my side supported me, for my head was reeling with weakness. Suddenly he shouted across the pond--"Fight him!--fight him! Oakes, strangle him."

I could see now that, somehow, Oakes's arm was around the maniac's neck, and that they were on their feet again. Neither had a weapon--they had long since been lost in the hand-to-hand fight.

"Oakes can't do it. Why, in the devil's name, did he try to capture him alive? Why did he not shoot to kill instead of to wound simply?" cried my companion.

Now Maloney was surging, dragging Oakes close to the water's edge--closer, ever closer.

Suddenly Oakes weakened and half stepped, half retreated, to the water's edge; then as suddenly the two figures swayed up the hill a few feet again, and with a quick, cat-like movement Oakes was free. It was his one supreme effort, a masterly, wonderfully executed, vigorous shove and side-step. It was evident Maloney was dazed. Oakes's strangle-hold had told at last.