With a sigh, Penny stepped down from the rock. “Want to look?” she invited.

“I do not!”

“Then I guess we may as well go home,” Penny said reluctantly.

As she spoke, both girls heard an automobile pull up in front of the tower. With reviving hope, Penny placed a restraining hand on Louise’s arm, forcing her to wait in the shadow of the building. A minute elapsed and then the front door of the tower slammed shut. Without the slightest hesitation, Penny once more moved to her previous position beneath the window.

“Charley has some visitors,” she reported in a whisper. “Four men I never saw before. I wish I could hear what they are saying.”

“Why not smash the window, or saw a hole through the wall?” Louise proposed sarcastically.

Penny stepped from the rock, offering the place to her chum.

“Do look inside,” she urged. “Maybe you’ll recognize those men. It’s really important.”

Louise unwillingly did as requested, but after a moment moved away from the window.

“I never saw any of them either,” she said. “They must be friends of Charley Phelps.”