For an hour the trio toiled. Twice one of the beach guards passed by and Penny was surprised that he paid no heed to what they were doing.

“Orders!” Jerry chuckled. “You didn’t think we could come out here and prowl around without questions being asked? The guard was tipped off. He’ll help us by whistling if anyone comes this way.”

Louise, who had been industriously digging, gave a low cry.

“Find something?” Jerry demanded.

“I’m not sure. I think so.”

The next instant Louise lifted a small package from its sand tomb. Before Jerry could warn her, she had torn apart the pasteboard cover.

“Why, it contains pencils!” she exclaimed in disgust. “Pencils!”

Jerry leaped to her side. One glance and he took the box from her.

“Those objects may look like pencils,” he drawled. “But take it from me, they’re a bit more deadly.”

Penny had moved close. She and Louise stared in awe at the collection.