6CHAPTER VI. THE ART OF DETECTION
21CHAPTER XXI. A NEW POINT OF VIEW
7CHAPTER VII. THE CASK AT LAST
22CHAPTER XXII. FELIX TELLS A SECOND STORY
8CHAPTER VIII. THE OPENING OF THE CASK
23CHAPTER XXIII. CLIFFORD GETS TO WORK
9CHAPTER IX. M. LE CHEF DE LA SÛRETÉ
24CHAPTER XXIV. MR. GEORGES LA TOUCHE
10CHAPTER X. WHO WROTE THE LETTER?
25CHAPTER XXV. DISAPPOINTMENT
11CHAPTER XI. MM. DUPIERRE ET CIE.
26CHAPTER XXVI. A CLUE AT LAST
12CHAPTER XII. AT THE GARE ST. LAZARE
27CHAPTER XXVII. LA TOUCHE’S DILEMMA
13CHAPTER XIII. THE OWNER OF THE DRESS
28CHAPTER XXVIII. THE UNRAVELLING OF THE WEB
14CHAPTER XIV. M. BOIRAC MAKES A STATEMENT
29CHAPTER XXIX. A DRAMATIC DÉNOUEMENT
15CHAPTER XV. THE HOUSE IN THE AVENUE DE L’ALMA
30CHAPTER XXX. CONCLUSION
