The same briar and bush moved a third time, and, as before, against the wind.  It did not escape the notice of Henry Ware.  Now he saw a sharp, red nose appear, and then the shaggy head behind it.

The nose remained—­projected and lifted in the air, a-sniff to catch the fleeting scent of an enemy.  Fancy could readily paint the ugly head of the lank body behind it.  But Henry Ware was not deceived for an instant.  The muzzle of the rifle that had been thrust forward, was raised now, and taking swift aim, he fired.

A wild and terrible cry swelled through the forest.  An Indian warrior sprang to his feet, casting off his guise of a wolfskin, stood perfectly still for a moment, and then fell headlong among the wet bushes.  The cry came back in many real echoes, the shouts of the warriors who knew now that there was to be no surprise for them.  Their battle cry swelled in volume, fierce with anger, but Henry, Shif’less Sol, and Tom Ross were already running back upon the camp, sounding the alarm, and the men, roused from sleep, were springing to arms.

CHAPTER XIX

THE BATTLE OF THE BANK

“What is it? what is it?” cried Adam Colfax, as the three sentinels, who were worth all the others combined, dashed into the camp.

“An Indian army!” replied Henry Ware.  “We do not yet know how strong, but we have seen their scouts! hark to them!”

The fierce war whoop rose and swelled through all the forest, died away, then swelled and died again.  From the dark wall of the trees came the crackling fire of rifles.  No one could be in doubt now.

“Out with the fires!  Scatter them, trample them down!” exclaimed Henry.

He set the example, kicking the wood and embers in every direction.  Adam Colfax was not one to resent such a sudden assumption of authority, when he saw that it meant the saving of human lives.  He repeated the order and joined in the work himself.  Fortunately the fires had burned low and the task was soon done, but not before two or three men had been hit by bullets from the surrounding darkness.

“Lie down, everybody!” cried Henry, and the order was obeyed at once.  Then the strange night battle in the heart of the wilderness began.  The savages, after their first attack, ceased to shout, and the voyagers on their own part made little noise.  But they knew that the assailing force was numerous.  It rimmed them on all sides save that of the river, and the little pink and red beads of fire seemed to flash from every bush.  The men on the boats swarmed to the shore, but Adam Colfax allowed only half of them to come, the land force at the same time falling back on the river to meet them.  He had no mind to let his communications be cut.

As the white line fell back the red came on, and uttered again the long-drawn, high-pitched war whoop, a cry of exultation.  But it was not repeated, as the white line withdrew only to the bank, and yielded no more.  Then both lines lay in the forest, faces invisible, but the pink and red beads of opposing fire ran back and forth in a stream.  Now and then, even in the darkness, a bullet struck true.  A groan would start in the white line, but it would be checked at the lips, because these were men too proud to give expression to pain.