“I’ll tell you,” Bart said soberly. By this time he had turned the milk truck around in the narrow road and had headed it up the hill. “There’s something going on here that will bear investigation.”
“The truck tire tracks, you mean?” interposed Ardeth, mystified by the remark.
“At first, that didn’t seem very disturbing,” Bart said. “But I’ve since made a discovery. That was why it took me so long.”
“You didn’t run into anyone in the cave?” Judy asked quickly.
“No, but someone has been there recently. Last night probably.”
“How do you know?”
“Someone had trampled the path to the cave. Boot tracks. Then inside the entrance chamber, I found cigarette butts and long marks, showing where heavy objects had been dragged across the floor. Boxes, I’d judge.”
“All removed?” Judy questioned.
“Yes, no sign of anyone or anything in the cave now.”
“You think someone must have come here last night in that truck and used the cave?”