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Hagen placed his hands behind his back.
“What do you know about the Thirty Years War?”
“Not enough, I suppose.”
The Redeemer: Jo Nesbo
The fat man screwed up his eyes and asked: “What do you know, sir, about the Order of the Hospital of St John of Jerusalem, later called the Knights of Rhodes and other things?”
Spade waved his cigar. “Not much-only what I remember from history in school-Crusaders or something.”
The Maltese Falcon by Dashiell Hammett