I The Shadow of a Cowl II The Pilbroch of the M'Gregors III The Scorpion's Tail IV Mademoiselle Dorian V The Sealed Envelope VI The Assistant Commissioner VII Contents of the Sealed Envelope VIII The Assistant Commissioner's Theory IX The Chinese Coin X "Close Your Shutters at Night" XI The Blue Ray I Zara el-Khala II Concerning the Grand Duke III A Strange Question IV The Fight in the Cafe…
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