Altogether they were very beautiful, but I fear that I did not regard them with a particularly appreciative eye on this, my first inspection of them.
Just then I was absorbed in them only as a medium of escape, and so, as my gaze ran quickly, time and again, over their vast expanse in search of some cranny or crevice, I came suddenly to loathe them as the prisoner must loathe the cruel and impregnable walls of his dungeon.
Tars Tarkas was approaching me rapidly, and still more rapidly came the awful horde at his heels.
It seemed the forest now or nothing, and I was just on the point of motioning Tars Tarkas to follow me in that direction when the sun passed the cliff's zenith, and as the bright rays touched the dull surface it burst out into a million scintillant lights of burnished gold, of flaming red, of soft greens, and gleaming whites—a more gorgeous and inspiring spectacle human eye has never rested upon.
The face of the entire cliff was, as later inspection conclusively proved, so shot with veins and patches of solid gold as to quite present the appearance of a solid wall of that precious metal except where it was broken by outcroppings of ruby, emerald, and diamond boulders—a faint and alluring indication of the vast and unguessable riches which lay deeply buried behind the magnificent surface.
But what caught my most interested attention at the moment that the sun's rays set the cliff's face a-shimmer, was the several black spots which now appeared quite plainly in evidence high across the gorgeous wall close to the forest's top, and extending apparently below and behind the branches.
Almost immediately I recognised them for what they were, the dark openings of caves entering the solid walls—possible avenues of escape or temporary shelter, could we but reach them.
There was but a single way, and that led through the mighty, towering trees upon our right. That I could scale them I knew full well, but Tars Tarkas, with his mighty bulk and enormous weight, would find it a task possibly quite beyond his prowess or his skill, for Martians are at best but poor climbers. Upon the entire surface of that ancient planet I never before had seen a hill or mountain that exceeded four thousand feet in height above the dead sea bottoms, and as the ascent was usually gradual, nearly to their summits they presented but few opportunities for the practice of climbing. Nor would the Martians have embraced even such opportunities as might present themselves, for they could always find a circuitous route about the base of any eminence, and these roads they preferred and followed in preference to the shorter but more arduous ways.
However, there was nothing else to consider than an attempt to scale the trees contiguous to the cliff in an effort to reach the caves above.
The Thark grasped the possibilities and the difficulties of the plan at once, but there was no alternative, and so we set out rapidly for the trees nearest the cliff.