"You know the risk," said Colonel Preston, apprehensive that Jo intended some effort that would expose him to extra peril.

"I reckon I do," was the response of the scout, who was the coolest one of the whole company.

The situation could not have been more trying to the bravest persons. In a manner almost unaccountable, a blaze had fastened itself in a point of the roof beyond the reach of those within. There it was burning and growing steadily, with the certainty that, unless checked pretty soon, it would be beyond control.

Jo Stinger was the only member of the garrison who appeared equal to the task, and more than one feared that to save the block-house he must assume a risk that was certain to prove fatal.

Ned Preston caught the arm of the man in the darkness and asked—

"Can't you put it out with a wet blanket?"

"Well, you're a boy that does know something!" exclaimed Jo, adding with a burst of admiration, "Give me your hand, younker; that's the very idee I had in mind."

This "idee," as the hunter termed it, was the ordinary one of spreading a blanket, soaked with water, over the spaces endangered by fire. Probably nothing more effective could have been devised, but it should have been adopted when the peril involved was much less. One-half of the entire roof was illuminated by the crackling blaze which was steadily eating its way into the solid timber.

Jo Stinger, having determined on his course, spent no time in useless conversation. Under his direction one of the blankets was saturated with water from the precious supply in the barrel. As it was necessary to see what they were doing, a tallow dip was lit and placed where it threw a faint illumination through the interior. The garrison could distinguish each other's figures, and no one needed any advice to keep out of the path of such bullets as might enter through the loopholes.

The scene was picturesque and striking. Mary and Susie still lay wrapped in slumber, and their closed eyes and innocent faces subdued every step and word, lest they should be awakened. Father and mother glanced fondly at them many times, and wondered how long that refreshing unconsciousness would continue.