"I must have come this way," he muttered, and started off. Then he stopped again, playing his light around. He couldn't be sure. Suddenly worried, he ran forward and was brought to a halt by a solid wall. He turned and hurried along it, seeking an opening. He found one, but smaller than the one through which he had come. He plunged on, found a big opening, and went through it into an irregular cave unlike any he had seen before. He turned to retrace his steps, and his eyes met a wall where the openings were separated only by glistening partitions of limestone. He couldn't even be sure of the one through which he had just entered.
He licked lips that were suddenly dry. "I can't lose my head," he told himself sternly. "I've got to stay calm."
But in spite of his warnings to himself, he felt panic rising within him.
He was completely, hopelessly lost!
CHAPTER XVI
The Lake of Darkness
Rick sat with his back against the cold surface of a stalagmite column. His head drooped with weariness and his throat ached from yelling. He had retraced his steps a dozen times or more. He had lost count. But none of the passages took him back to his friends, nor had his yelling of their names brought a response.
He forced himself into a semblance of calmness and tried to think. What was he to do? He eyed the beam of his flashlight and realized that he ought to conserve the batteries. He turned it off, and dead, silent blackness closed in about him.
True blackness is rare. It cannot be found by closing shutters or curtains in a room, even at night. Some light always penetrates man-made rooms unless they are designed, as very few are, for total darkness. Rick never had experienced it before, and it was frightening. He had to take a firm grip on himself to keep from getting panicky.