“But the Rovers haven’t much folding money.”

“All expenses will be paid.”

“Say, that’s great!” Jack exclaimed. “But it’s fantastic! Who is the easy-mark willing to pay for this pleasure jaunt?”

“I didn’t say the expedition would be a pleasure trip,” Mr. Livingston warned. “The mission will be a tough one—harder than anything we ever attempted before. Mr. Monahan, our backer, is a level-headed business man. He’ll expect results.”

By this time, the waiter had brought chicken and steaks, but the four Rovers were too excited to do full justice to the appetizing food set before them. They fairly bombarded Mr. Livingston with questions.

“Here’s the meat of it,” he said. “For many years—twelve to be exact—Mr. Monahan’s brother, Burton, lived in Peru. Recently, through a meeting with a missionary in a little coastal village, he learned of an unexplored ancient Inca temple where great treasure had supposedly been hidden at the time Spaniards conquered the country.”

“Weren’t the Incas an Indian race?” Willie inquired.

“Correct. They excelled at road building, stone work and in the arts. When the Spaniards looted the country about 400 years ago, the Incas saved some of their vast treasure by dumping it into lakes or burying it in caves.”

“We’re going to Peru to search for lost treasure?” demanded War excitedly.

Mr. Livingston shook his head. “No, the lost treasure concerns us only as it may account for Burton Monahan’s strange disappearance.”