"But I don't understand how they got him," Teddy wailed. "He went away with you."

"He went into a hidden passage to make a picturesque effect," Frank said, "and did not return. We thought it one of his jokes, and paid little attention to his absence. We might have rescued him if we had known."

"Of course he was seized in that passage," Dode said. "Did you get the picture he was to be in?"

"Sure we did!" cried Frank. "I'll see if he was there when the camera opened."

As he spoke the boy made a rush for his suitcase, took out his development tank, printing frame and other tools, and set to work on his film roll. He used two powders instead of one, and in ten minutes was ready for the printing.

In a few minutes more he was at work in the tent, with the boys gathered around him. The developer had worked perfectly, notwithstanding the haste, and the printing was well advanced in the soft light of the tent. Directly he had the picture taken in the cave under view—the snapshot of the wall showing the entrance to the secret passage.

"Quick work!" Ned declared. "What does it show?"

They all gathered around the print, each trying to get the first glance at it.

"There's Jimmie!" Teddy shouted. "He was looking out of the door when the picture was taken! I can almost see his freckles!"

"There he is, sure enough!" Frank cried. "The little monkey!"