"Because I saw that when Bernard came he would be arrested, and there would be a chance for my son getting the money. Then Sir Simon intended to have Michael arrested—I wished to stop that. Then, again, for years Sir Simon had insulted and humiliated me. I hated him fervently. Oh, I had plenty of reasons to kill the old brute. I went downstairs and got the chloroform."
"Had you that ready?" asked Durham, horrified at this recital.
"Yes and no. I didn't buy it then. I always thought that Sir Simon kept his will at the Hall, and I bought the chloroform months before, hoping one night to make him insensible, so that I could look at the will. But the chloroform was not wasted," said Mrs. Gilroy, with a pale smile. "I brought it with me to town—always ready to watch for my chance of rendering my master insensible and of reading the will. I wanted to see if he left Michael anything, and if he had really left me the five hundred he promised. Besides, in his death, I saw a chance of getting rid of Bernard by hanging, and of having my son acknowledged as the heir."
"But Beryl? You reckoned without Beryl?"
"No," said Mrs. Gilroy, calmly. "You forget the handkerchief. I took that down with me, and soaked it with chloroform. I guessed that the handkerchief would condemn Beryl, should it be necessary to accuse any one. I did not foresee what would happen," added the woman, impatiently. "I only acted as I saw things then. I came upstairs, and while pretending to arrange Sir Simon's cushions, I clapped the handkerchief over his mouth. He struggled for a long time. It is not easy to chloroform people," said the woman, pensively. "I thought they went off at once, but Sir Simon was some time struggling."
"Go on—go on," said Durham in disgust. "Get this over."
Mrs. Gilroy laughed and drew her shawl tightly about her spare figure.
"After he was insensible," she continued, "I strangled him with his own handkerchief, after tying Beryl's handkerchief across his mouth. I then went down and took my work up again while waiting for Bernard."
Durham made a gesture of abhorrence. "You could work?"
"Why not?" said Mrs. Gilroy. "There was nothing else to do—the old man was dead—the trap was set. All I had to do was to wait till Bernard walked into it."