“Proof! A clever man like you ought to see ample proof in the fact of that wretch having twice called me a madman. I have seen him but once before—you know if I then gave him any grounds for making such an assertion. Tell me, from whom could he have learned the word except from Ralph Carriston?”

I was bound, if only to save my own reputation for sagacity, to confess that the point noted by Carriston had raised certain doubts in my mind. But if Ralph Carriston really was trying by some finely-wrought scheme to bring about what he desired, there was all the more reason for great caution to be exercised.

“I am sorry you beat him,” I said. “He will now swear right and left that you are not in your senses.”

“Of course he will. What do I care?”

“Only remember this. It is easier to get put into an asylum than to get out of it.”

“It is not so very easy for a sane man like myself to be put in, especially when he is on his guard. I have looked up the law. There must be a certificate signed by two doctors, surgeons—or, I believe, apothecaries will do—who have seen the supposed lunatic alone and together. I’ll take very good care I speak to no doctor save yourself, and keep out of the way of surgeons and apothecaries.”

It quite cheered me to hear him speaking so sensibly and collectedly about himself, but I again impressed upon him the need of great caution. Although I could not believe that his cousin had taken Madeline away, I was inclined to think, after the affair with the spy, that, as Carriston averred, he aimed at getting him, sane or insane, into a mad-house.

But after all these days we were not a step nearer to the discovery of Madeline’s whereabouts. Carriston made no sign of doing anything to facilitate that discovery. Again I urged him to intrust the whole affair to the police. Again he refused to do so, adding that he was not quite ready. Ready for what, I wondered!

X.

I must confess, in spite of my affection for Carriston, I felt inclined to rebel against the course which matters were taking. I was a prosaic matter-of-fact medical man; doing my work to the best of my ability and anxious when that work was done that my hours of leisure should be as free from worry and care as possible. With Carriston’s advent several disturbing elements entered into my quiet life.