THE TREASURE VAULTS OF OPAR
zan paused to listen for any responsive note which might indicate that the unusual night noise had alarmed the inmates of the temple; but as he heard nothing he advanced beyond the doorway.
Carefully feeling about, he found himself within a large chamber, along the walls of which, and down the length of the floor, were piled many tiers of metal ingots of an odd though uniform shape. To his groping hands they felt not unlike double-headed bootjacks. The ingots were quite heavy, and but for the enormous number of them he would have been positive that they were gold; but the thought of the fabulous wealth these thousands of pounds of metal would have represented were they in reality gold, almost convinced him that they must be of some baser metal.
At the far end of the chamber he discovered another barred door, and again the bars upon the inside renewed the hope that he was traversing an ancient and forgotten passageway to liberty. Beyond the door the passage ran straight as a war spear, and it soon became evident to the ape-man that it had already led him beyond the outer walls of the temple. If he but knew the direction it was leading him! If toward the west, then he must also be beyond the city's outer walls.
With increasing hopes he forged ahead as rapidly as he dared, until at the end of half an hour he came to another flight of steps leading upward. At the bottom this flight was of concrete, but as he ascended
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