Spade bowed to the girl. “Miss O’Shaughnessy,” he said, “may I present Lieutenant Dundy and Detective-sergeant Polhaus.” He bowed to Dundy. “Miss O’Shaughnessy is an operative in my employ.” Joel Cairo said indignantly: “That isn’t so. She—” Spade interrupted him in a quite loud, but still genial, voice: “I hired her just recently, yesterday. This is Mr. Joel Cairo, a friend—an acquaintance, at any rate—of Thursby’s. He came to me this afternoon and tried to hire me to find something Thursby was supposed to have on him when he was bumped off. It looked funny, the way he put it to me, so I
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