"My dear sir," said Stratton, "I know all about it."

"Sir, that is impossible. Nobody knows what our defence is to be except Mr. Benham and myself."

"And Mr. Stratton, of the Chicago Argus," replied the young man, as he buttoned his coat.

"May I ask, then, what the defence is?"

"Certainly," answered the Chicago man. "Your defence is that Mr. Brenton was insane, and that he committed suicide."

Even Mr. Brown's habitual self-control, acquired by long years of training in keeping his feelings out of sight, for the moment deserted him. He drew his breath sharply, and cast a piercing glance at the young man before him, who was critically watching the lawyer's countenance, although he appeared to be entirely absorbed in buttoning his overcoat. Then Mr. Brown gave a short, dry laugh.

"I have met a bluff before," he said carelessly; "but I should like to know what makes you think that such is our defence?"

"Think!" cried the young man. "I don't think at all; I know it."

"How do you know it?"

"Well, for one thing, I know it by your own actions a moment ago. What first gave me an inkling of your defence was that book which is on your table. It is Forbes Winslow on the mind and the brain; a very interesting book, Mr. Brown, very interesting indeed. It treats of suicide, and the causes and conditions of the brain that will lead up to it. It is a very good book, indeed, to study in such a case. Good evening, Mr. Brown. I am sorry that we cannot co-operate in this matter."