“The poison is wonderfully slow,” said Buck.
“But not less wonderfully sure,” returned Charlie, with a smile.
“As you will,” rejoined Buck, rising and going outside with his visitor.
The night was very still and beautiful, and, the clouds having cleared away, the moonbeams struggled through the foliage and revealed the extreme wildness and seclusion of the spot which had been chosen by the outlaws as their fortress.
Charlie now saw that the approach to the entrance of the cave was a narrow neck of rock resembling a natural bridge, with a deep gully on either side, and that the cliff which formed the inner end of the cavern overhung its base, so that if an enemy were to attempt to hurl rocks down from above these would drop beyond the cave altogether. This much he saw at a glance. The minute details and intricacies of the place of course could not be properly seen or understood in the flickering and uncertain light which penetrated the leafy canopy, and, as it were, played with the shadows of the fallen rocks that strewed the ground everywhere, and hung in apparently perilous positions on the mountain slopes.
The manner of the outlaw changed to that of intense earnestness the moment he got out to the open air.
“Charlie Brooke,” he said, with more of the tone and air of old familiar friendship than he had yet allowed himself to assume, “it’s of no use exciting poor Shank unnecessarily, so I brought you out here to tell you that your man Dick Darvall is in deadly peril, and nothing but immediate action on my part can save him; I must ride without delay to his rescue. You cannot help me in this. I know what you are going to propose, but you must trust and obey me if you would save your friend’s life. To accompany me would only delay and finally mar my plans. Now, will you—”
A peculiar whistle far down the gorge caused the outlaw to cease abruptly and listen.
The whistle was repeated, and Buck answered it at once with a look of great surprise.
“These are my fellows back already!” he said.