“You don’t think——”
“Dr. Sheppard, I dare to think anything. Ursula Bourne may have killed Mr. Ackroyd, but I confess I can see no motive for her doing so. Can you?”
He looked at me very hard—so hard that I felt uncomfortable.
“Can you?” he repeated.
“No motive whatsoever,” I said firmly.
His gaze relaxed. He frowned and murmured to himself:—
“Since the blackmailer was a man, it follows that she cannot be the blackmailer, then——”
I coughed.
“As far as that goes——” I began doubtfully.
He spun round on me.