Royce had gone three parts of the way down the hill when there was a shout in the distance, followed by a shot. He glanced ahead quickly, but none of the enemy was to be seen. A little patch of smoke hung over the trees about a quarter of a mile beyond the stream.

"They mean to surround us, then," he thought.

He quickened his pace, dodging from bush to bush, and calling to the Hausas to hurry, taking all possible cover. Since the enemy had not yet come out into the open, there might be time to fill the vessels and return before there was any serious danger.

The three men dashed down to the stream, dipped their vessels, and in less than half a minute turned back to ascend the hill. Another shot rang out, and from the wall above a volley flashed.

"Good man!" thought Royce.

Then he became aware that one of the meat tins was leaking badly. By the time he reached the fort all the water it contained would have run away.

"Botheration!" he said to himself, quite forgetting his danger in the annoyance caused by this discovery.

But a moment later he knew that the danger was even greater than he had supposed. From his left came a din of lusty shouting. He heard a single rifle-shot, farther away than the volley which had just been fired. The meaning of it flashed upon him. The main body of the Tubus, warned by the shout and the shots, had left the position to which they had retired, and were dashing across the open to attack the fort on the south side.

Behind him, too, the enemy was coming on. Looking over his shoulder, he saw that a small band of horsemen has issued from the wood and were galloping towards him.

"Quick, boys!" he cried.