"My G.o.d! My G.o.d!" cried Cameron, his breath coming in sobbing gasps.

"The cut bank!"

Hardly were the words out of his mouth when Raven came up at an easy canter.

"Don't worry," he said quietly to Mandy, who was wringing her hands in despair, "I'll get them."

Like a swallow for swiftness and for grace, the black stallion sped away, flattening his body to the trail as he gathered speed. The bronchos had a hundred yards of a start, but they had not run another hundred until the agonized group of watchers could see that the stallion was gaining rapidly upon them.

"He'll get 'em," cried h.e.l.l, "he'll get 'em, by gum!"

"But can he turn them from the bank?" groaned Mandy.

"If anything in horse-flesh or man-flesh can do it," said h.e.l.l, "it'll be done."

But a tail-race is a long race and a hundred yards' start is a serious handicap in a quarter of a mile. Down the sloping trail the bronchos were running savagely, their noses close to earth, their feet on the hard ground like the roar of a kettledrum, their harness and trappings fluttering over their backs, the wagon pitching like a ship in a gale, the girl clinging to its high seat as a sailor to a swaying mast.

Behind, and swiftly drawing level with the flying bronchos, sped the black horse, still with that smooth grace of a skimming swallow and with such ease of motion as made it seem as if he could readily have increased his speed had he so chosen.

"My G.o.d! why doesn't he send the brute along?" cried Dr. Martin, his stark face and staring eyes proclaiming his agony.

"He is up! He is up!" cried Cameron.

The agonized watchers saw the rider lean far over the bronchos and seize one line, then gradually begin to turn the flying ponies away from the cut bank and steer them in a wide circle across the prairie.

"Thank G.o.d! Thank G.o.d! Oh, thank G.o.d!" cried the doctor brokenly, wiping the sweat from his face.

"Let us go to head them off," said Cameron, setting off at a run, leaving the doctor and his wife to follow.

As they watched with staring eyes the racing horses they saw Raven bring back the line to the girl clinging to the wagon seat, then the black stallion, shooting in front of the ponies, began to slow down upon them, hampering their running till they were brought to an easy canter, and, under the more active discipline of teeth and hoofs, were forced to a trot and finally brought to a standstill, and so held till Cameron and the doctor came up to them.

"Raven," gasped Cameron, fighting for his breath and coming forward with hand outstretched, "you have--done--a great thing--to-day--for me. I shall not--forget it."

"Tut tut, Cameron, simple thing. I fancy you are still a few points ahead," said Raven, taking his hand in a strong grip. "After all, it was Night Hawk did it."

"You saved--my sister's life," continued Cameron, still struggling for breath.

"Perhaps, perhaps, but I don't forget," and here Raven leaned over his saddle and spoke in a lower voice, "I don't forget the day you saved mine, my boy."

"Come," said Cameron, "let me present you to my sister."

Instantly Raven swung himself from his horse.

"Stand, Night Hawk!" he commanded, and the horse stood like a soldier on guard.

"Moira," said Cameron, still panting hard, "this is--my friend--Mr.

Raven."

Raven stood bowing before her with his hat in his hand, but the girl leaned far down from her seat with both hands outstretched.

"I thank you, Mr. Raven," she said in a quiet voice, but her brown eyes were shining like stars in her white face. "You are a wonderful rider."

"I could not have done it, Miss Cameron," said Raven, a wonderfully sweet smile lighting up his hard face, "I could not have done it had you ever lost your nerve."

"I had no fear after I saw your face," said the girl simply. "I knew you could do it."

"Ah, and how did you know that?" His gray-brown eyes searched her face more keenly.

"I cannot tell. I just knew."

"Let me introduce my friend, Dr. Martin," said Cameron as the doctor came up.

"I--too--want to thank you--Mr. Raven," said the doctor, seizing him with both hands. "I never can--we never can forget it--or repay you."

"Oh," said Raven, with a careless laugh, "what else could I do? After all it was Night Hawk did the trick." He lifted his hat again to Moira, bowed with a beautiful grace, threw himself on his horse and stood till the two men, after carefully examining the harness and securing the reins, had climbed to their places on the wagon seat.

Then he trotted on before toward the Stopping Place, where the minister's wife and indeed the whole company of villagers awaited them.

"Oh, isn't he wonderful!" cried Moira, with her eyes upon the rider in front of them. "And he did it so easily." But the men sat silent. "Who is he, Allan? You know him."

"Yes--he is--he is a chap I met when I was on the Force."

"A Policeman?"

"No, no," replied her brother hastily.

"What then? Does he live here?"

"He lives somewhere south. Don't know exactly where he lives."

"What is he? A rancher?"

"A rancher? Ah--yes, yes, he is a rancher I fancy. Don't know very well.

That is--I have seen little of him--in fact--only a couple of times--or so."

"He seems to know you, Allan," said his sister a little reproachfully.

"Anyway," she continued with a deep breath, "he is just splendid." Dr.

Martin glanced at her face glowing with enthusiasm and was shamefully conscious of a jealous pang at his heart. "He is just splendid,"

continued Moira, with growing enthusiasm, "and I mean to know more of him."

"What?" said her brother sharply, as if waking from a dream. "Nonsense, Moira! You do not know what you are talking about. You must not speak like that."

"And why, pray?" asked his sister in surprise.

"Oh, never mind just now, Moira. In this country we don't take up with strangers."

"Strangers?" echoed the girl, pain mingling with her surprise. "And yet he saved my life!"

"Yes, thank G.o.d, he saved your life," cried her brother, "and we shall never cease to be grateful to him, but--but--oh, drop it just now please, Moira. You don't know and--here we are. How white Mandy is. What a terrible experience for us all!"

"Terrible indeed," echoed the doctor.