"He hurt me enough. You villain, take that!" And now the man fired, but the bullet flew wide of its mark, for Randolph Rover had practiced but little with firearms.
They now thought it time to retreat, and, watching their chance, they ran from the rocks to the trees beyond. While they were exposed another spear was sent after them, cutting its way through Mr. Rover's hat brim and causing that gentleman to turn as pale as a sheet.
"A few inches closer and it would have been my head!" he ejaculated. "This is growing too warm for comfort. Perhaps we had better rejoin the others, Dick."
"Cujo! Cujo! Where are you?" cried the boy once more. But as before no answer came back.
The shots had alarmed the others of the expedition, and all were hurrying along the rocky ledge when Randolph Rover and Dick met them.
"We must turn back!" exclaimed Randolph Rover. "If you go ahead we may be caught in an ambush. The Bumwos have discovered our presence and mean to kill us if they can!"
Suddenly a loud, deep voice broke upon them, coming from the rocks over the cave entrance.
"White men must leave this mountain!" cried the voice. "This country belongs to the Bumwos. White man has no right here! Go! Go before it is too late!"
"Who is that who speaks?" demanded Randolph Rover.
"I am King Susko, chief of the Bumwos."