He laid his hand upon its top as if to pull it down. It came away so readily it all but fell on his feet. Behind it the crudest sort of masonry walled up a natural door. Ten minutes later, standing on the heap of blocks he had tumbled rapidly down in forming a gap through four feet at least of this bulkhead, Grenville thrust his torch within a nichelike chamber of the cavern. A low exclamation of astonishment burst from his lips at the vision thus suddenly encountered. The place was a tomb for dead kings' gold and precious stones that threw back the gleams from his torch! CHAPTER XXIII A DESPERATE CHANCE For fully a minute Grenville was motionless, there in the gap, surveying the treasure crypt. The more his eyes became accustomed to the yellowish light and inky shadows, the more extensive became his estimate of the wealth the cave contained. The symbols and trinkets of solid metal and glistening stones were arranged not only on rudely-hewn shelves about the cavern's walls, but likewise in several stone receptacles, like sarcophagi in miniature, cut from the tufa of the island. It was partially because of this feature of the hidden niche that Grenville concluded the property here had once belonged to either Indian or African native chiefs and that this was a mortuary house of guarded treasure. There was, however, further confirmation of his theory. This was a crude inscription on the wall above the shelves and caskets. It was simply that same cartouch he had found on the map or parchment--once part of a living being--with the figure of a mummy in the oval. On either side of this the beetle or scarab was repeated. The utter inutility of gold and gleaming jewels was momentarily forgotten as Grenville stared in from the wall. The island, its perils--everything save an underlying current of thought that wove about Elaine--had ceased for the moment to impress his newly dazzled senses. He withdrew his arm to plant his torch in the stones already removed. Then lustily heaving out stone after stone, like some naked god of the underworld, half revealed in the smoky glare, he began to demolish the barrier so carefully erected in the cave. He had torn down nearly half the bulk of this uncemented wall, filling the larger cavern weirdly full of the crashing and thudding noises, when one of the fragments, tossed unthinkingly behind him, bounded from another rock and struck down his torch and its light. Utter darkness instantly descended. He tried to grope his way quickly forward, thinking the torch might be recovered and blown to a flame again. But he stumbled, fell down upon his knees, and was bruised on the stones about his feet. When he finally found the torch with his hand, a rock lay squarely upon it; the last of its fire was gone.