“I will show you.”
Dr. Rander stepped over to one corner of the large room, where was a huge statue of a man, perhaps an Inca king.
“Now look closely,” he said, when the youths had followed him.
The old man walked up to the statue and stood directly in front of it. Then he waited.
At that moment something happened that caused Bob and Joe to gasp in wonder. Slowly, surely, the statue sank into the floor until it disappeared from sight. Directly below the resulting opening was a ladder, which led down into another gigantic room.
“Well, of all things!” cried Joe in utter amazement. “That sure is a secret if there ever was one.”
“Let us go down.” Dr. Rander was making his way down the ladder, motioning for the youths to follow.
They did and soon found themselves in a huge cavern cut out of solid rock. Here were more stone objects similar to the ones in the room above them.
“This way,” pointed out the old man, walking over to one side of the cave.