Encouraged by the report of the scouts, Sun Bird gave the word to advance. The little company rode along in silence, for they were suspicious and apprehensive of an attack. They knew that if the Kiowas were on a war expedition they would be almost sure to resume their journey before daylight, and the Sioux feared they might encounter them somewhere along their route. They reached the abrupt turn in the stream, and had ridden an arrow-flight toward the north, when White Otter suddenly stopped his pony and placed his hand on Sun Bird's arm.

"Stop!" he whispered. "My ears tell me there is danger."

The Sioux brought their ponies to a stand, and listened anxiously to learn the cause of White Otter's alarm. For some moments they heard nothing but the sullen roar of the torrent beside them, and then directly ahead of them they heard the approach of a pony. As they fitted arrows to their bows and peered eagerly into the dark the sound ceased. It was evident that the rider had stopped. They wondered if he had discovered them. Then one of the ponies snorted, and an instant later they heard the mysterious horseman galloping wildly across the plain.

The perplexed Sioux remained silent as the hoofbeats of the racing pony echoed through the night, for they were anxious to make sure which way the rider had gone. Still they realized that they could not place much confidence in such a hint, for they knew that an experienced scout would alter his course to fool them. Therefore, when the hoofbeats finally died away in the north the anxious listeners were unable to place much faith in the clew.

"It is bad," said White Otter. "Whoever that rider is, I believe he has gone to tell his people about us. Perhaps he is a Kiowa."

"Yes, I believe he is with the war party," replied Sun Bird. "My brothers, I will tell you how the thing is in my mind. If we wait here that scout will bring his people to fight us. If we go back perhaps we will meet the Black Faces. We cannot cross this water. If we go the other way we will find the Kiowas. There is only one thing to do. Come, we will go ahead. If we find our enemies there then we must fight. I have finished."

His words received the hearty approval of his companions, and as there seemed to be no other alternative they resumed their way toward the north. They rode in pairs with the captured ponies between them. Having been discovered, they feared that an attack was unavoidable, and they prepared to make a valiant defense. While they could not be sure of the identity or whereabouts of the people who threatened them, still they believed that they were Kiowas, who were advancing from the west. The fact that the lone scout had galloped toward the north without attempting to conceal his flight made the Sioux suspicious. They felt quite sure that the maneuver was a clever ruse to mislead them. Hoping that the way before them was unguarded, therefore, they raced through the night at top speed.

A short distance farther on, however, they collided with a large company of horsemen who had been awaiting them at the top of a shallow ravine. As the Sioux slackened their pace to cross the gully the unknown war party rushed upon them. For a moment all was confusion, and Sun Bird saw his little force hesitating on the verge of panic. Then as he called upon them to be men they recovered themselves, and began to fight furiously.

"Stop! Stop! These people are not Kiowas. They are our brothers, the Cheyennes!" cried Feather Dog, after the skirmish had continued a few moments.

"Cheyennes, hold your arrows! We are fighting our brothers, the Sioux!" shouted a warrior of the opposing force.