“The jay,” said the doctor a little absently.
“Undoubtedly. It must have made two trips through the bars — one with the half-scissors, the other with this envelope. I suppose the gold wax attracted its thieving eye.”
The doctor nodded and turned the envelope over again. “I wonder,” he murmured, “where Karen got this?” I thought when she sent Kinumé for the stationery that she had none available—”
“Oh, she probably had one sheet and envelope left,” said Ellery indifferently, “but since she had two letters to write, one to you and one to Morel...”
“Yes,” said Dr. MacClure. He put the envelope down on the little table and turned his back to Ellery.
“Unfortunately,” said Ellery, “we can’t always order things as we should like. Had that bird not interfered, everything would have been different. For in that envelope, if you will take out the note, is Karen Leith’s last message. In it she says she is going to take her own life, and in it she tells why — because, she says, the cancer you had diagnosed as incurable made suicide the only way out.”
Dr. MacClure muttered: “So that’s how you knew! I thought that intellectual process was a little far-fetched.”
But Ellery said: “So you see why I had to ask your advice, Doctor. It’s too bad that I’m cursed with a never-satisfied mind. I’m dreadfully, dreadfully sorry. Yours was a crime that deserved a better fate than being found out. I had to ask your advice because I can’t decide what to do. I feel that the decision must remain in your hands.”
“Yes,” said the doctor thoughtfully.
“You can do one of three things: walk out of here and preserve your silence, in which case you toss the ethical problem right back in my lap; walk out of here and give yourself up to the police, in which case you deliver the finishing blow to poor Eva; or walk out of here and—”
“I think,” said the doctor quietly, turning around, ‘that I know what I have to do.”
“Ah,” said Ellery, and he groped for his cigaret-case.
The doctor picked up his hat. “Well,” he said, “good-bye.”
“Good-bye,” said Ellery.
Dr. MacClure extended his powerful right hand. Ellery shook it slowly, as one shakes the hand of a friend for the last time.
When the doctor had gone, Ellery sat down before the fireplace in his dressing-gown, reached for the envelope, stared at it glumly for a moment and then, striking a match, ignited one corner of the paper and laid it down in the empty grate.
He sat back with folded hands, watching the envelope burn. Something Dr. MacClure had said in those last moments came back to him. “So that’s how you knew! I thought that intellectual process was a little far-fetched.”
And Ellery thought of how carefully he had searched Karen’s house late that afternoon for the stationery, without telling anyone; and of how he had sat down in the stillness of Karen Leith’s death-room to imitate her handwriting in the two essential words; and of how he had slipped a blank sheet of the deckle-edged paper into the prepared envelope and sealed the envelope and then slit it open and then affixed the gold wax to the flap with Karen Leith’s own seal. And of how he had dirtied it and faked the marks of dew.
Intellectual process! Yes, he thought, very intellectual indeed.
And he wondered as he watched the gold wax melt and run under the heat: How prove a case of mental murder? How prove that a man can commit murder not with his hands but with his brain? How punish a natural force, like the desire for rightful vengeance? How catch a wind, or trap a cloud, or make justice condemn itself to death?
Ellery stared morosely into the grate. The last fragile scrap of stationery was licked up by the flame as he watched, and all that was left was a residue of ash with a gold blob weighing it down like a mass of mortality.
And he thought that bluff was man’s defense against the impalpable, and conscience his only guide. And he thought how easy it was, and how terrible it was, with only pen and ink and paper and wax as his tools, for a man to accomplish the one and stir up the other.
He shivered a little before the dark fireplace. It was too much like playing God to feel entirely comfortable.