“Man, this is getting past a joke!” cried MacDonald, rising angrily from his chair.
“Well, well, spend the day as you like,” said Holmes, patting him cheerfully upon the shoulder. “Do what you like and go where you will, but meet me here before dusk without fail—without fail, Mr. Mac.”
“That sounds more like sanity.”
“All of it was excellent advice; but I don’t insist, so long as you are here when I need you. But now, before we part, I want you to write a note to Mr. Barker.”
“Well?”
“I’ll dictate it, if you like. Ready?
“DEAR SIR.—It has struck me that it is our duty to drain the moat, in the hope that we may find some—”
“It’s impossible,” said the inspector. “I’ve made inquiry.”
“Tut, tut! My dear sir, please do what I ask you.”
“Well, go on.”
“—in the hope that we may find something which may bear upon our investigation. I have made arrangements, and the workmen will be at work early to-morrow morning diverting the stream—”
“Impossible!”
“—diverting the stream; so I thought it best to explain matters beforehand.
“Now sign that, and send it by hand about four o’clock. At that hour we shall meet again in this room. Until then we may each do what we like; for I can assure you that this inquiry has come to a definite pause.”
Evening was drawing in when we reassembled. Holmes was very serious in his manner, myself curious, and the detectives obviously critical and annoyed.