"What makes you suspect Robinson?" asked Mr. Hardy of Hurd Applegate.
"He's the only person besides my sister and me who ever saw that safe opened and closed. He could have learned the combination if he kept his eyes and ears open. I believe he did."
"But is that your only reason for suspecting him?"
"More than that. This morning he paid off a note at the bank. It was a note for nine hundred dollars, and I know for a fact that he didn't have more than one hundred dollars to his name a few days ago. The Robinsons have been hard up, for they had sickness in the family last winter and Henry Robinson has had a hard time meeting his debts since then. Now where did he raise nine hundred dollars so suddenly?"
"Perhaps he has a good explanation," said Mr. Hardy mildly. "It doesn't do to jump at conclusions."
"Oh, he'll have an explanation all right!" sniffed Mr. Applegate. "But it will have to be a mighty good one to satisfy me."
"Luckily, he'll not have to satisfy Mr. Applegate, but will have to convince a jury—if it gets that far," whispered Joe in his brother's ear.
The automobile was speeding up the wide driveway that led to Tower Mansion, and within a few minutes it drew up at the front
