“Nothing to do but go on to the new tower,” Mr. Hardy commented briefly.
“I’ll have to rest and eat something before I do any more,” Hurd Applegate said wearily. He led the way to the dining room where sandwiches and milk had been set out. “Help yourselves,” he invited. He himself took only crackers and milk when they all sat down.
After the brief stop for refreshment, the Hardys and the mansion owner turned their attention to the new tower. Again they searched carefully. Walls and partitions were tapped and floors were sounded. Every bit of furniture was minutely examined. Not an inch of space escaped the scrutiny of the detective and his helpers.
As the search drew to a close and the loot still had not been found, Mr. Hardy remarked, “It certainly looks as if the stolen property was never hidden here by Jackley. And furthermore, there’s no evidence that if he did hide it here, anyone came in to take it away.”
“You mean,” said Frank, “it’s proof that Mr. Robinson did not come in here?”
“Exactly.”
“Maybe not,” Mr. Applegate conceded. “But it still doesn’t prove he wasn’t in cahoots with the thief!”
“I’m not going to give up this search yet,” Mr. Hardy said determinedly. “Perhaps the loot was hidden somewhere outside the old tower.”
He explained that it would be difficult to examine the grounds properly at night. “With your permission, Mr. Applegate, my sons and I will return at sunrise tomorrow morning and start work again.” As the owner reluctantly nodded his assent, Mr. Hardy turned to Frank and Joe and smiled. “We ought to be able to prove our point before schooltime.”
The boys, who had had no time to prepare any homework, reminded their father that a note from him to the principal would be a great help. The detective smiled, and as soon as they reached home he wrote one out, then said good night.