Hokar had proved a difficult subject. Whether he was too grateful to Mrs. Krill to speak out, or whether he really did not understand what was asked of him, he certainly showed a talent for holding his tongue. However, Hurd saw well enough that the man was afraid of the Sahib's law, and when matters came to a crisis would try and prove his innocence even at the cost of implicating others. Therefore, with an easy mind the detective left these two witnesses being watched at Christchurch and repaired to town, where Aurora informed him of the interview with Hay. Billy approved of the way in which his sister had managed matters. "I guessed that Hay was the man who put Mrs. Krill on the track of her husband," he said, with satisfaction; "but I wasn't quite sure how he spotted the man." "Oh, the one eye identified him," said Aurora, who was eating chocolate as usual, "and Norman's fainting at the sight of the brooch confirmed Hay's belief as to who he was. I wonder he didn't make a bargain with Norman on his own." Hurd shook his head. "It wouldn't have paid so well," said he, wisely. "Norman would have parted only with a small sum, whereas this murder will bring in Hay a clear five thousand a year when he marries the girl. Hay acted cleverly enough." "But I tell you Hay has nothing to do with the murder." "That may be so, though I don't trust him. But Mrs. Krill might have strangled her husband so as to get the money." "What makes you think she did?" asked Aurora, doubtfully. "Well, you see, from what Jessop says, Mrs. Krill is devotedly attached to Maud, and she may have been anxious to revenge her daughter on Krill. He acted like a brute and fastened the child's lips together, so Mrs. Krill treated him in the same way." "Hum," said Miss Qian, reflectively, "but can you prove that Mrs. Krill was in town on the night of the murder?" "That's what I'm going to find out," said Hurd. "All you have to do is to keep your eyes on Hay--" "Oh, he won't cut, if that's what you mean. He thinks everything is square, now that I've got those boys to stop chattering. He'll marry Maud and annex the money." "He may marry Maud," said Hurd, emphatically, "but he certainly won't get the five thousand a year. Miss Norman will." "Hold on," cried Aurora, shrewdly. "Maud may not be Lemuel Krill's child, or she may have been born before Krill married the mother, but in any case, Sylvia Norman isn't the child of a legal marriage. Krill certainly committed bigamy, so his daughter Sylvia can't inherit." "Well," said Hurd, "I can't say. I'll see Pash about the matter. After all, the will left the money to 'my daughter,' and that Sylvia is beyond doubt, whatever Maud may be. And I say, Aurora, just you go down to Stowley in Buckinghamshire. I haven't time to look into matters there myself." "What do you want me to do there?"