“What!” Biscayne was peering at the written page. “Look at this, commissioner!
“Throckmorton visited Harshaw two years ago — refused to give money to the old man. You remember, I said that Harshaw talked vaguely about enemies?
“Maybe Throckmorton was one of them. Maybe he knew too much about the old man’s ideas.
“Cardona, have you found any connection between Harshaw and the others?”
“No,” said the detective.
“Well,” declared Biscayne, “they didn’t keep diaries! I remember, now, something that young Richard Sutton said.
“His father was bothered by speculators continually — by people with unsound ideas.
“There’s a link, there. Positively! Between Harshaw and Thomas Sutton!”
“YOU’RE right,” replied Cardona solemnly. “Dead right, professor. We didn’t find it out, because the son didn’t know.
“I’m putting that point down” — he made a notation — “and you’ll see that it fits in later. Because I’ve got another line on Sutton.”