four of you stay here, and take it by turns, one after the other, to enlarge the hole forward to the entrance.  As you scrape the earth down you must past it back handful by handful.  Do not enlarge the outer entrance or disturb the roots of the heather growing there.  Any movement might be noticed by those below.  It is lucky, indeed, that the rock ends just when it gets to its narrowest, and that it is but sandy soil through which we have to scrape our way.  It will be hard work, for you have scarce room to move your arms, but you have plenty of time since we cannot sally out till nightfall.”

The hours passed slowly, and about noon the lookout reported that a number of bowmen were approaching.

“They are going to attack this time under cover of their fire,” Archie said, “and as I do not wish to hazard the loss of any lives, we will keep within the cave and let them gain the ledge.  They can never force their way through the narrow entrance.  The only thing I fear is smoke.  I purpose that if they light a fire at the mouth of the cave, we shall retire at once up the passage where we are working, and block it up at a narrow place a short distance after it leaves this cavern, with our clothes.  You had best take off some of your things, scrape up the earth from the floor of the cavern, and each make a stout bundle, so that we can fill up the hole solidly.”

This was soon done, and the bundles of earth were laid in readiness at the point upon which their leader had fixed.  In the meantime Archie had rejoined the lookout.

“They have been scattered for some time,” the guard said, “and have been cutting down bushes and making them into faggots.”

“Just what I expected,” Archie exclaimed.  “The bowmen are joining them now.  We shall soon see them at work.”

Sir John Kerr now marshalled his retainers.  He and his men-at-arms drew their swords, and the rest, putting the bundles of faggots on their shoulders, prepared to follow, while the bowmen fitted their arrows to the string.

“Fall back inside the cave,” Archie said; “it is of no use risking our lives.”

The band now gathered in a half circle, with level spears, round the entrance.  Soon they heard a sharp tapping sound as the arrows struck upon the rock, then there was a crashing among the bushes.”

“Come on!” Sir John Kerr shouted to the vassals.  “The foxes have slunk into their hole.”  Then came low thuds as the faggots were cast down.  The light which had streamed in through the entrance gradually became obscure, and the voices of those without muffled.  The darkness grew more intense as the faggots were piled thicker and thicker; then suddenly a slight odour of smoke was perceived.

“Come along now,” Archie said; “they have fired the pile, and there is no fear of their entrance.”