The Duke was in the throes of composition that evening, having at last settled down to the writing of the themes, when Cotton, who had disappeared a half-hour before with a vague mention of the library, returned unostentatiously with a book. The Duke glanced up incuriously, his mind on his work, favored Cotton with a brief and somewhat hostile stare, and was in the act of returning his gaze to the paper before him when a detail of the other’s attire caught his eye.