“It empties into the brook which flows into the river,” Bart explained. “But no one can follow the course of the underground stream farther than I went. The way beyond is barred by solid rock.”

The young explorer spent more than an hour at camp, telling the Scouts many interesting facts about caves in general.

All the girls were envious of Judy and Kathleen because they had viewed so many of the beautiful formations.

“The most breath-taking sights are in the chamber directly under Calico Cave,” Bart said. “There’s no reason why a ladder or steps can’t be built down there, so everyone can view them. I am to talk to Mr. Krumm today and see what can be done. It’s a cinch he can’t rent his cottage without extensive repairs, and it would pay him to open up the cave instead.”

Since the tearing down of the cottage foundation wall, Miss Meadows had not been able to stay in the dwelling. She had taken a room at the hotel for one night, and after that Mr. Krumm had transferred her to another one of his cottages, directly on Morning Glory Lake.

Surprisingly, the real estate man had announced that Miss Meadows might have the place rent free.

“You’ve had a rugged time of it at the other cottage,” he acknowledged. “You deserve a couple of peaceful weeks.”

The girls correctly surmised that Mr. Krumm’s generosity was occasioned by a belated realization that Calico Cave had great commercial possibilities.

They were entirely right. In the week that followed, the real estate man bolstered up the cottage foundation again, converting the building into an office where admission tickets could be sold.

He then had carpenters construct a stairway down to the fairyland chamber, one which would serve temporarily until a more permanent installation could be made.