They knew that whatever it was, it was some satanic stratagem of the savages, and that it would come all too soon.
The light was now zigzagging back and forth across the road, and approaching the Fort with marvelous rapidity.

Now its motion was like the wide swinging of a lighted lantern on a dark night.

A moment more of breathless suspense and the lithe form of an Indian brave could be seen behind the light.

He was running with almost incredible swiftness down the road in the direction of the Fort.
Passing at full speed within seventy-five yards of the stockade-fence the Indian shot his arrow.

Like a fiery serpent flying through the air the missile sped onward in its graceful flight, going clear over the block-house, and striking with a spiteful thud the roof of one of the cabins beyond.