Superintendent Merrington dismissed this information with a nod, and turned to Caldew.
"Did you interview Mrs. Weyne?" he asked.
"They were not in," was the reply. "I was told they had motored to the moat-house. Did you see them?"
Superintendent Merrington frowned. He had not seen the Weynes, and he had not been informed of their visit. It was another addition to the sum of untoward incidents which had happened to him since his arrival at the moat-house, and he felt very dissatisfied and wrathful.
"I am returning to London by the next train, Caldew," he said, in his authoritative voice. "Official business of importance demands my immediate presence. I will have some inquiries made at Scotland Yard about the people who have been staying here. In the meantime, you had better remain on the spot and continue your inquiries under the Chief Constable."
"I shall be very glad of Detective Caldew's help in unravelling this terrible mystery," Captain Stanhill remarked courteously.
Caldew drew several conclusions from his chief's speech. Merrington was puzzled about the case, but had no intention of taking him into his counsel. Merrington believed that the murderer had got clear away, and, therefore, further local investigation was useless, but he deemed it advisable to keep a Scotland Yard man on the scene to watch for possible developments, because he placed no reliance on the county police. It was apparent that Merrington thought the murderer had come from a distance, and he was going to seek him in London. But he was leaving nothing to chance. He was retaining control of the investigations at both ends in order to monopolize the glory of the capture. If the murderer escaped, Caldew and the county police could be made the scapegoats for public indignation.
But while paying the involuntary tribute of swift anger towards these astute tactics of his departmental chief, Caldew realized with satisfaction that he was in the possession of a piece of valuable information which might upset his calculations.
"There are several people in the district whom it will be advisable to interview," continued Merrington, hastily consulting his notes. "In the first place, you must make another effort to see the Weynes. Mrs. Weyne may be able to give us some valuable information about Mrs. Heredith's earlier life. And I think you should see the station-master of Weydene Junction. The murderer may have walked across country to the junction rather than face the greater risk of subsequent identification by taking the train at one of the village stations on this side of it. And you had better see the housekeeper's daughter and get a statement from her. I do not suppose she knows anything about the crime, but she was here last night, and she had better be seen. She is employed as a milliner at the market town of Stading."
"Do you mean Hazel Rath?" inquired Caldew, in some surprise.