"I feel certain you are," answered Octavius, gently; "but, as you say, circumstances are strong against you. Tell me everything without reserve, and I may be able to advise you; otherwise, I am completely in the dark."

"I believe you are my friend, Fanks," said Roger, earnestly. "I believe you know me too well to think I would be guilty of such a dreadful crime. Yes; I will tell you everything, and place myself unreservedly in your hands. But first tell me how it is you are so sure it was murder and not suicide!"

"Certainly! It is well we should both be on common ground for the better understanding of your explanation. Regarding the death of this Melstane, I own that at Jarlchester I was half inclined to believe in the suicide theory, and had it not been for the name Ironfields on that pill-box, which gave me a clue, would probably have acquiesced in the verdict of the jury. Following up the clue, however, I went to the chemists, Wosk & Co.'s, where the pills were made up, and discovered that originally there were twelve in the box. I could account for the disposal of six, so that ought to have left a balance of half-a-dozen."

"True! but if I remember, when I counted them at Jarlchester there were eight."

"Exactly! Two extra pills were placed in that box by some unknown person whom I believe to be the murderer of Melstane."

"Why?"

"Because I took the pills to Dr. Japix, and he analysed the whole eight; seven were harmless tonic pills, the eighth compounded of deadly morphia."

"What!" cried Roger, starting to his feet, "and Melstane died of morphia!"

"He did! Now do you understand? The murderer, whoever he was, placed two morphia pills sufficient to cause death in the box. Melstane took one in complete innocence and died, the other was analysed by Japix and found to contain sufficient morphia to kill two men."

"It's wonderful how you have worked it out," said Roger, with hearty admiration; "but how do you connect me with the murder?"