“Oh yes, I remember it well.”
“So do I,” said Ned, quietly now, for he was evidently greatly interested.
“I looked at it intently, so that I got to know the place thoroughly. I can recollect all the loose stones piled-up along the sides and overhanging so that very little would make them block up the rift.”
“To be sure,” said Griggs, going on with his cleaning again. “I know the spot. You might make a strong fort there in no time so as to defend the valley.”
“Yes, yes, of course,” said Ned impatiently; “but go on.”
“I think I’d better leave off now,” said Chris apologetically; “it seems so stupid.”
“Never mind; let’s have it,” cried Griggs.
“Well, this is what I thought,” continued Chris, “that if we could go up there some day and hide along the heights with our ponies and mules, and wait till the enemy came by to get into the valley, and then tumble all the rocks and stones down—”
“One minute,” said Griggs. “You mean that very, very narrow bit where there’s hardly room for two mules to pass?”
“Yes, that’s it; where the rocks high up nearly meet.”