"Howly saints!" gasped Barney. "He must mean the explorers, Graves and Kerney," said Frank. "They were not explorers; if they said so, they lied. Caleb Kerney is one of the old band of Danites, as bloodthirsty and relentless as the worst of them. Colton Graves is the son of Pascal Graves, once a leader of the Destroying Angels--a man whose hands were dyed with innocent blood. They went forth, with others, to bring provisions from the settlements. All of the others have returned before them." "And they led Walter Clyde and Professor Scotch into this snare!" said Frank. "They found out that Walter was coming this way to search for the retreat of the Danites, and they led him here, with the intention of destroying him." "Thot's roight, me b'y," nodded Barney. "Kerney slipped away, and hastened ahead to tell Uric Dugan who was coming," said Old Solitary, who seemed to know all that had taken place. "Graves remained to guide the victims to their doom." "Is it possible such monsters can continue to live and carry on their murderous work?" exclaimed Frank. "Some day Ko-pe-tah will find the way in here," laughed Old Solitary. "Who is Ko-pe-tah?" "A Navajo chief who hates Uric Dugan, and has tried to kill him. Twice within two years has Ko-pe-tah brought his braves into these mountains, searching for some access to this valley. The last time he was here, he found the passage by which you entered. Four of the Danites held the passage against a hundred warriors, and the Navajoes were repulsed. But Ko-pe-tah swore he would come again. If he ever gets in here, woe unto the Danites!" "How did it happen that we came through that passage without being stopped?" "You were alone, two boys. You were seen, and were allowed to enter, for they knew you could not escape. They made sure of you by letting you walk into the trap." "But Ko-pe-tah was held out." "Because he had a hundred warriors behind him, and he would destroy the Danites if he got inside." This was logical enough, and, at that moment Old Solitary scarcely seemed like a person deranged. Frank spent some moments in thought, and then asked: "Are Clyde and Graves still together?" "They are." "And Clyde has no knowledge that Graves is other than what he represented himself to be?" "It is not likely that he has." "He must be warned." "It is too late.' "Why?" "Before you can reach him the Danites will have him in their power." "That is not certain," cried Frank, starting up. "Come, we will try to save him. Lead us to him." "You shall see that what I say is true," said Old Solitary. He motioned for them to follow, and led the way back along the passage, the torch having been relighted. Through the main chamber they passed, and came to another passage, which finally brought them out far from the mountain pocket in which was the home of the Danites.