Miss Mephistopheles by Fergus Hume

When the inquest was over, Naball went straight home, and carefully read all the notes he had taken of the evidence given. After doing so, he came to the conclusion that the person on whom most suspicion rested was Keith Stewart.

"In the first place," said Naball, thoughtfully eyeing his papers, "Stewart was the clerk of old Lazarus, and knew what was in the safe, and where the keys were kept; he is a member of an expensive club, which he can't possibly afford to pay for out of his salary as a clerk; as to his coming in for money, that's bosh! -- if he had, agreement or no agreement, he wouldn't have remained with old Lazarus. He states that he left the theatre at half-past twelve, and the doctor says the death took place at midnight; but then he wasn't sure, and it might have taken place at half-past one, which would give Stewart time to commit the crime. He could not account for his time between leaving the theatre and seeing Villiers except by saying he had been walking, which is a very weak explanation. Humph! I think I'll see Mr. Stewart and ask him a few questions."