We began a thorough examination of the yawl, in the endeavour to reconstruct the affair of the early morning. For there were all the elements of a strange mystery in that and curiosity about the whole thing was as strong in me as in Scarterfield. We knew now many things that we had not known twenty-four hours before--one was that the many affairs, dark and nefarious, of Netherfield Baxter, had nothing to do with the murders of Noah and Salter Quick; another that those murders without doubt arose from the brothers' possession of the pearls and rubies which Salter had shown to the Hatton Garden diamond merchant. All things considered it seemed to me that the explanation of the mystery rested in some such theory as this--the Chinaman, Lo Chuh Fen, doubtless knew as well as Baxter and his French friend that the Quicks were in possession of the rubies stolen from the heathen temple in Southern China; no doubt he had become acquainted with that fact when the marooned party from the _Elizabeth Robinson_ were on the intimate terms of men united by a common fate on the lonely island. Drifting eventually to England, Chuh had probably discovered the whereabouts of the two brothers, had somehow found that the rubies were still in their possession, might possibly have been in personal touch with Salter or with Noah, had taken others of his compatriots, discovered in the Chinese quarters of the East End into his confidence, and engineered a secret conspiracy for securing the valuables. He himself had probably tracked Salter to the lonely bit of shore near Ravensdene Court; associates of his had no doubt fallen upon Noah at Saltash. But how had all this led up to the attack of the Chinese on Baxter and the Frenchman?--and who was the man who, leaving every other member of the yawl's company dead or dying and who had exchanged those last shots with Netherfield Baxter, had escaped to the shore and was now, no doubt, endeavouring to make a final bid for liberty?