“That is more likely,” said Biscayne.

Richard Sutton had approached to look at the letter.

“If that came yesterday,” he said, “I doubt that my father would have opened it until last night.”

“Why?”

“Because he made it a practice to look in the mail box when he came home in the evening. I never use this address — I get all my mail at the club. What does the letter say?”

Cardona showed the message to Richard.

“Dana never sent that,” said the young man emphatically. “But I don’t think the fact would have registered itself with my father.

“Any statement of where the cane might be, would have caused him to act without question. That lost cane had become an obsession with him.”

“Why don’t you think Dana sent it?” asked Cardona.

Richard rummaged in the desk and brought out a greeting card that Cardona had tossed aside as unimportant.