Willoughby Smith, a very young man straight from the university, seems to have been just what his employer wanted. His work consisted in writing all the morning to the professor’s dictation, and he usually spent the evening in hunting up references and passages which bore upon the next day’s work. This Willoughby Smith has nothing against him, either as a boy at Uppingham or as a young man at Cambridge. I have seen his testimonials, and from the first he was a decent, quiet, hardworking fellow, with no weak spot in him at all. And yet this is the lad who has met his death this morning in the professor’s study under circumstances which can point only to murder.”

The wind howled and screamed at the windows. Holmes and I drew closer to the fire, while the young inspector slowly and point by point developed his singular narrative.