“Ginnie?”
“It’s not impossible. I’m afraid I must reject the possibility of suicide. It’s tempting but in this instance I fear it just won’t wash. But let’s suppose, let’s merely suppose, that Mrs. Gort decided to murder her husband and implicate you.”
“Why would she do that?”
“I’ve no idea. But suppose she did, and suppose she intended to get her husband to drive her car and arranged the dynamite accordingly, and then when she left the house so hurriedly she forgot what she’d done, and of course the moment she turned the key in the ignition it all came back to her in a rather dramatic way.”
“But I can’t believe—”
“Oh, Mr. Lattimore,” Ehrengraf said gently, “we believe what it pleases us to believe, don’t you agree? The important thing is to recognize that you are innocent and to act on that recognition.”
“But how can you be absolutely certain of my innocence?”
Martin Ehrengraf permitted himself a smile. “Mr. Lattimore,” he said, “let me tell you about a principle of mine. I call it the Ehrengraf Presumption.”