"Well," said Eustace, quietly, "I went to Sand Lane to examine Tilly, the servant. She said that the right-hand window of the house was open--" "I remember that. I told you so," said Frank. "Yes, and on your report I questioned Tilly. She admitted that she told a lie at the inquest. The window was open when she left the house. On her return"--here Eustace looked again at Tamaroo--"it was locked, which proves that the assassin entered by the window, and, after committing the murder, locked it so that no one should get into the house, and discover the crime. Then he left by the door." "Why do you look at Tamaroo when you say that?" asked Frank. "Because Tilly found a scrap of tartan ribbon on the kitchen floor similar to that worn by Balkis. I brought it with me, and Balkis acknowledged that it was a piece she gave to Tamaroo, when he decided to see Starth." Frank wheeled round and looked anxiously at the negro. "Did you see Starth?" he demanded. "I thought you did not arrive in London till after the murder, and for that reason you could not find me." Tamaroo considered for a few minutes. "I did say that," he admitted; "because I thought it wise for the moment to conceal that I had been in Starth's house. I thought you might mistrust me." "I should never do that," replied Lancaster, patting the old man on the back. "But why did you visit Starth?" "I should like to know that also," said Eustace, who was not so easily convinced of the negro's innocence. The man gave him a reproachful glance. "I acted for the best, Mr. Jarman. You can trust me." "I think I can," answered Eustace, cautiously. "And yet--why did you visit Starth?" "To explain that, I must remind you of the murder of Anchor in San Francisco. It was Sakers who shot him. I was glad of it." Eustace looked as surprised as Frank. "I thought Anchor was the executor of my father?" said the latter. "He was, and he intended to betray his trust. He was so madly in love with his wife that he could not give her up. She threatened to leave him and go with her uncle if he did not let her share in the money of Mr. Lancaster. Anchor had the papers--some of them. But I had others which he wanted, so that he could dispose of the money. He intended to join his wife in Chicago, and, with Sakers, to arrange for the robbery. I do not know how he intended to manage it. But I do know," added Tamaroo, emphatically, "that it was his intention to return to his house, where I was waiting for him, to get the papers from me, and to leave me dead behind him." Eustace could scarcely believe this, "If you heard how the man spoke to me--"