He glanced at Sir Clinton.
“You wouldn't care to tell me how you worried the thing out, I suppose?”
“No,” said the Chief Constable bluntly. “I don't feel inclined to.”
Markfield made a gesture as though regretting this decision. He drew his fountain pen from his pocket, unscrewed the cap deliberately, and moved round the table towards the sheets of paper which the Inspector had spread out for signature. A thought seemed to occur to him as he did so, and he bent forward to the apparatus on the tray. His manner was so unconcerned and the gesture so natural that neither Sir Clinton nor the Inspector thought of interfering before it was too late. Markfield put his hand on the tap of the funnel, and as he did so, his face lighted up with malicious glee.
“Now!” he exclaimed.
He turned the tap, and on the instant the whole house shook under a terrific detonation.
Chapter XIX.
Excerpts from Sir Clinton's Notebook
Written after the murder at Heatherfield.
. . . The following things seem suggestive. (1) The break-up of the Silverdale ménage, with Silverdale turning to Avice Deepcar whilst Mrs. Silverdale lets Hassendean frequent her openly. (2) Hassendean's interference with the usual routine of coffee serving after dinner at Heatherfield. (3) The “dazed” appearance of Mrs. Silverdale when she left the house after coffee. (4) The fact that the two shots which wounded Hassendean at close quarters were not fired in Ivy Lodge. (This exonerates Dr. Ringwood, who might otherwise have come under suspicion). (5) The disappearance of Mrs. Silverdale, who was last seen in Hassendean's company. (6) The words: “Caught me . . . Thought it was all right. . . . Never guessed,” which Hassendean uttered before he died. (7) The murder of the maid at Heatherfield, which was clearly done by someone she knew well or she would not have admitted him at that time of night. (8) The ransacking of one particular drawer in Mrs. Silverdale's bedroom, suggesting that the murderer had full knowledge of her private affairs. (9) The envelope fragment with the date-stamp 1925, which might indicate that the drawer had held letters compromising to the murderer. (10) The old dance programmes on which asterisks stood for the name of some partner, who must have been intimate with her at that period.
The affair can hardly have been the usual social-triangle tragedy: Silverdale surprising his wife with Hassendean. This hypothesis fails to account for (a) the dazed appearance of Mrs. Silverdale, which suggests drugging; (b) the murder and burglary at Heatherfield, Silverdale's own house in which he could come and go freely without resorting to such extremes; and (c) The expression “Caught me . . .” in Hassendean's last words, since “Caught us . . .” would have been the natural phrase in the case of the triangle-drama.