It appeared that he had once before been concerned in a poisoning case. Decidedly my good fortune had been on the wane without my knowing it. I think his previous experience had somewhat obsessed him with the idea that poisoners were everywhere. Only in this way can I account for the unerring ability with which he followed up every clue.

I was beginning to feel more and more uncomfortable, and when Mr. Gascoyne and the two doctors disappeared into the library—I had not been invited to be present—I felt much like the criminal who in a moment of panic betrays his guilt by flight.

My wife came to me once or twice; but she was a great deal with Lady Gascoyne, or rather stayed just within call, for Lady Gascoyne was a proud woman, and preferred to suffer in solitude.

Whilst the consultation was proceeding in the library, I remained in the corridor outside, controlling my agitation with really wonderful success. As I stood in the dusk looking out through the open window, round which climbed June roses and clematis, Esther Lane stole up to me.

So ghostlike and silent had been her approach that I gave a cry as her eyes met mine. On further recollection, the sound I made was a smothered yell. It was a sound which now seems to me to have been full of a confession of guilt.

For a moment she did not even say she was sorry she had startled me. She was evidently too amazed at my display of nerves. I even think that a faintly defined ghost of suspicion floated through her mind. At any rate, the incident seemed to widen the gulf between us.

“This is terrible, is it not?” she said.

“It is terrible.”

“And but for me Lady Gascoyne would have had her child to console her.” She covered her face with her hands.

“I do not think you ought to put it like that,” I said gently.