They are about to close in upon him with this purpose when he is arrested by the officers of the law for the murder of Frank.
He is tried before his own father, the Lord Justice-Clerk, found guilty, and condemned to death.

Meanwhile the elder Kirstie, having discovered from the girl how matters really stand, informs her nephews of the truth; and they, in a great revulsion of feeling in Archie's favour, determine on an action after the ancient manner of their house.

They gather a following, and after a great fight break the prison where Archie lies confined, and rescue him.

He and young Kirstie thereafter escape to America.

But the ordeal of taking part in the trial of his own son has been too much for the Lord Justice-Clerk, who dies of the shock.