Chapter I: Prologue: 11

CHAPTER

I INTRODUCES OSWALD DE GEX 20

II THE SISTER'S STORY 37

III WHO WAS GABRIELLE ENGLEDUE? 48

IV FACING THE MUSIC 59

V THE CITY OF THE LILY 69

VI ANOTHER PUZZLE 80

VII THE MILLIONAIRE'S APPREHENSIONS 91

VIII LITTLE MRS. CULLERTON 102

IX SOME PLAIN SPEAKING 113

X MONSIEUR SUZOR AGAIN 122

XI THE ABSOLUTE FACTS 132

XII "RED, GREEN AND GOLD!" 143

XIII SOME INTERESTING REVELATIONS 153

XIV THE GATE OF THE SUN 163

XV THE INTRUDER 172

XVI ANOTHER STRANGE DISCLOSURE 182

XVII WHAT THE PROFESSOR FOUND 192

XVIII MORE ABOUT THE MYSTERY-MAN 202

XIX THE TRACK OF DESPUJOL 212

XX MADEMOISELLE JACQUELOT 222

XXI AT THE HÔTEL LUXEMBOURG 232

XXII GABRIELLE AT HOME 243

XXIII THE DEATH-DRUG 253

XXIV YET ANOTHER MYSTERY 263

XXV WHAT THE VALET KNEW 272

XXVI MORE ABOUT MATEO SANZ 284

XXVII A CURIOUS STORY 293

XXVIII LOVE THE CONQUEROR 299

XXIX ANOTHER PLOT 311

CONCLUSION 316

THE STRETTON STREET AFFAIR