“Exactly. This chance of the picture has supplied us with one of our most obvious missing links. We have him, Watson, we have him, and I dare swear that before to-morrow night he will be fluttering in our net as helpless as one of his own butterflies. A pin, a cork, and a card, and we add him to the Baker Street collection!” He burst into one of his rare fits of laughter as he turned away from the picture. I have not heard him laugh often, and it has always boded ill to somebody.

I was up betimes in the morning, but Holmes was afoot earlier still, for I saw him as I dressed, coming up the drive.

“Yes, we should have a full day to-day,” he remarked, and he rubbed his hands with the joy of action. “The nets are all in place, and the drag is about to begin. We’ll know before the day is out whether we have caught our big, lean-jawed pike, or whether he has got through the meshes.”

“Have you been on the moor already?”

“I have sent a report from Grimpen to Princetown as to the death of Selden. I think I can promise that none of you will be troubled in the matter. And I have also communicated with my faithful Cartwright, who would certainly have pined away at the door of my hut, as a dog does at his master’s grave, if I had not set his mind at rest about my safety.”

“What is the next move?”

“To see Sir Henry. Ah, here he is!”

“Good-morning, Holmes,” said the baronet. “You look like a general who is planning a battle with his chief of the staff.”

“That is the exact situation. Watson was asking for orders.”

“And so do I.”

“Very good. You are engaged, as I understand, to dine with our friends the Stapletons to-night.”

“I hope that you will come also. They are very hospitable people, and I am sure that they would be very glad to see you.”

“I fear that Watson and I must go to London.”

“To London?”

“Yes, I think that we should be more useful there at the present juncture.”

The baronet’s face perceptibly lengthened.

“I hoped that you were going to see me through this business. The Hall and the moor are not very pleasant places when one is alone.”

“My dear fellow, you must trust me implicitly and do exactly what I tell you. You can tell your friends that we should have been happy to have come with you, but that urgent business required us to be in town. We hope very soon to return to Devonshire. Will you remember to give them that message?”

“If you insist upon it.”

“There is no alternative, I assure you.”

I saw by the baronet’s clouded brow that he was deeply hurt by what he regarded as our desertion.

“When do you desire to go?” he asked coldly.

“Immediately after breakfast. We will drive in to Coombe Tracey, but Watson will leave his things as a pledge that he will come back to you. Watson, you will send a note to Stapleton to tell him that you regret that you cannot come.”

“I have a good mind to go to London with you,” said the baronet. “Why should I stay here alone?”

“Because it is your post of duty. Because you gave me your word that you would do as you were told, and I tell you to stay.”

“All right, then, I’ll stay.”

“One more direction! I wish you to drive to Merripit House. Send back your trap, however, and let them know that you intend to walk home.”

“To walk across the moor?”

“Yes.”

“But that is the very thing which you have so often cautioned me not to do.”

“This time you may do it with safety. If I had not every confidence in your nerve and courage I would not suggest it, but it is essential that you should do it.”

“Then I will do it.”