“By the by, doctor,” said Vance to Von Blon as the latter re-entered the drawing-room, “have you seen Oppenheimer yet?”

“I saw him at eleven. The fact is, I went direct to him after leaving here this morning. He has agreed to make an examination to-morrow at ten o’clock.”

“And was Mrs. Greene agreeable?”

“Oh, yes. I spoke to her about it this morning; and she made no objection whatever.”

A short while later we took our departure. Von Blon accompanied us to the gate, and we saw him drive off in his car.

“We’ll know more by this time to-morrow, I hope,” said Markham on the way down-town. He was unwontedly depressed, and his eyes were greatly troubled. “You know, Vance, I’m almost appalled by the thought of what Oppenheimer’s report may be.”

No report was ever made by Doctor Oppenheimer, however. At some time between one and two the next morning Mrs. Greene died in convulsions as a result of strychnine-poisoning.

CHAPTER XXI.
A Depleted Household

(Friday, December 3; forenoon)

Markham brought us the news of Mrs. Greene’s death before ten o’clock the next morning. The tragedy had not been discovered until nine, when the nurse brought up her patient’s morning tea. Heath had notified Markham, and Markham had stopped on his way to the Greene mansion to apprise Vance of the new development. Vance and I had already breakfasted, and we accompanied him to the house.