He indicated two hours.

“Then lead us in that direction at once.”

In less than a half hour the Professor struck the trail of the tribe which had so peculiarly vanished in the morning, and it was now easy to track them.

For the past three days they had heard no sounds of the guns from the party in the wagon, and the Professor inferred, either that they had succeeded in resisting the assault made on them, or might have been captured, and were now in the possession of one or the other of the tribes which were fighting for possession.

Night came before they were able to reach the scene of the fight. The Professor stationed guards around the camp, and gave instructions to inform him of any suspicious movements in either direction.

It was singular, indeed, that the last runner sent to Uraso and Ralsea had not returned. Several times during the night the watchers from the east came to the Professor, and he hurried out with them to try and ascertain what the disturbances there might mean.

Early in the morning, however, it was seen that a war party was in the immediate vicinity on the east. This news was startling enough to cause the Professor to call in the pickets and investigate the position of the new enemy.

“Who are they?” he asked of the chief man left with him.

“They look like the Saboros.”

“Find out at once.”