Only once had he and Joyce Harker met since the murder of Valentine Jernam. George had landed a cargo at Hamburg, and had given his brother's friend rendezvous there. Then the two men had talked of all that had been done so vainly, and all that remained to be done, Harker hoped, so effectively. Joyce had never been able to bring his suspicions concerning Black Milsom to the test of proof. Unwearied search had been made for the old man who had played the part of grandfather to the beautiful ballad-singer; but it had been wholly ineffectual. All that could be ascertained concerning him was, that he had died in a hospital, in a country town on the great northern road, and that the girl had wandered away from there, and never more been heard of. Of Black Milsom, Joyce Harker had never lost sight, until his career received a temporary check by the sentence of transportation, which had sent the ruffian out of the country. But all efforts of the faithful watcher had failed to discover the missing link in the evidence which connected Black Milsom with Valentine Jernam's death. All his watching and questioning--all his silent noting of the idle talk around him--all his eager endeavour to take Dennis Wayman unawares, failed to enable him to obtain evidence of that one fact of which he was convinced--the fact that Valentine Jernam had been at the public-house in Ratcliff Highway on the day of his death. When the inutility of his endeavours became clear to Joyce Harker, he gave up his lodging in Wayman's house, and located himself in modest apartments at Poplar, where he transacted a great deal of business for George Jernam, and maintained a constant, though unprofitable, communication with the detective officer to whom he had confided the task of investigation, and who was no other than Mr. Andrew Larkspur. In one of the earliest of the numerous letters which George Jernam addressed to Harker, after the death of Valentine, the merchant-captain had given his zealous friend and assistant certain instructions concerning the old aunt to whom the two desolate boys had owed so much in their ill-treated childhood, and whom they had so well and constantly requited in their prosperous manhood. These instructions included a request that Joyce Harker would visit Susan Jernam in person, and furnish George with details relative to that venerable lady's requirements, looks, health, and general circumstances. "I should have seen the good old soul, you know," wrote George, "when I was to have seen poor Val; but it didn't please God that the one thing should come off any more than the other, and it can't be helped. But I should like you to run down to Allanbay and look her up, and let her know that she is neither neglected nor forgotten by her vagabond nephew."