The rock in question stood apart from the rest on the slope of the hill. Nature had carved it in a moment of prankishness. There were all the features of an old crone, forehead, nose, sunken mouth, nut-cracker jaws, while small streams of lava, hardening as they had flowed, gave the similitude of scanty tresses. Tyke and the captain, soon came up, and all their doubts disappeared as they gazed. "The Witch's Head!" they agreed exultantly. "With that to start with, the rest will be easy," cried Drew. "The Three Sisters can't be more than a few hundred feet or so away." Ten minutes' further search revealed a group of three rocks, which, while having no resemblance to female faces, were the only ones that stood apart from all the rest as a trio. The hands of the three men trembled as they got out the old map and pored over it. "Thirty-seven big paces due north from the Witch's Head; eighty-nine big paces due east from The Three Sisters," muttered the captain. "Paces, even big paces, is rather indefinite," commented Drew. "If it were yards or feet, now, it would be different. But one man's paces differ from another's, and a short man's differ from a tall man's." "It was very inconsiderate of that old pirate not to tell exactly how tall he was," jested Ruth. "Well, we can't have everything handed to us on a gold plate," said the captain. "We may have to dig in a good many places before we strike the right spot." "Let's do this," suggested Tyke. "Each one of us men will mark off the paces, taking good long strides, an' see where we bring up. Then we'll mark off a big circle that will include all three results. It's a moral certainty that it will be somewheres in that circle if it's here at all." They acted on this suggestion, Ruth, with pencil and paper, serving as scribe, while the men did the pacing. She was elated at the part she had played in the discovery. It was an easy enough matter to make thirty-seven big paces from one point and eighty-nine big paces from another, but, as every student of angles knows, it was very difficult to make the two lines converge at the proper point. But though their methods were rough, they succeeded at last in getting a very fair working hypothesis. A rough circle of forty feet in diameter was drawn about the stake Drew set up, and within that circle they were convinced the treasure lay. By this time the sun had reached the zenith, and before they started to dig they retreated to the shade in the edge of the jungle and ate their lunch. "Hadn't you better wait until it gets a little cooler by and by?" asked Ruth anxiously. "It will be frightful under this hot sun. This is the hour of siesta." "I guess we're too impatient for that," answered her father. "But we'll work only a few minutes at a time and take long resting spells between."