Leeds said nothing.
“Look here,” Mason interrupted, “if you’re absolutely certain your brother telephoned you at ten-twenty-five, it puts Alden Leeds in the clear.”
“Of course, he did.”
“You’re certain it was your brother?”
“Of course. I guess I know my own brother’s voice.”
Mason said thoughtfully, “And how about your watch? Was it right?”
“It was right to the second,” she said. “Alden and I were taking the midnight plane.”
Mason said, “If that’s the truth, Alden Leeds is in the clear.”
“Of course, it’s the truth. Why should I lie?”
“To help Alden Leeds, of course,” Mason said. “Surely you don’t expect the district attorney’s going to quit cold simply on your say-so.”