The Superintendent spoke again: "You understand, Sergeant Daw, that you are put in full charge of this case." "Under you I hope, sir," he interrupted.

The other shook his head and smiled as he said: "It seems to me that this is a case that will take all a man's time and his brains.

I have other work to do; but I shall be more than interested, and if I can help in any possible way I shall be glad to do so!" "All right, sir," said the other, accepting his responsibility with a sort of modified salute; straightway he began his investigation.
First he came over to the Doctor and, having learned his name and address, asked him to write a full report which he could use, and which he could refer to headquarters if necessary.

Doctor Winchester bowed gravely as he promised.

Then the Sergeant approached me and said sotto voce: "I like the look of your doctor.