"No," replied Musard. "It was the only piece of the rare kind I was ever lucky enough to obtain."

"There was another small piece, Vincent," remarked Miss Heredith. "You brought it about ten years ago. It was the same kind of transparent stone, with black flecks in it."

"I had forgotten. I gave it to Phil, didn't I? What did he do with it?"

"He had it made into a brooch for Hazel Rath, and gave it to her as a birthday gift."

CHAPTER XII

As Caldew returned to the house for his interview with Merrington, the one clear impression on his mind was that the discovery of the owner of the missing brooch was the starting point in the elucidation of the murder.

In the library he found Superintendent Merrington, Captain Stanhill, Inspector Weyling, and Sergeant Lumbe. The sergeant, who looked tired and dirty, was apologetically explaining that his visit to Tibblestone had been fruitless.

"I had my journey for nothing," he was saying in his thick country voice, as Caldew entered. "I had a wild goose chase all over the place, and then it turned out that this chap Mr. Hawkins telephoned about was only a canva.s.ser for In Memoriam cards for fallen soldiers. I come across him at last sitting by the roadside eating his dinner and reading a London picture paper. He looked a doubtful sort of a customer, sure enough, but he was able to prove that he was playing bagatelle in the inn last night at the time the murder was committed."

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.

"Yes. She is the daughter of the housekeeper. She stayed here last night with her mother, but left to go back to her employment by the first train this morning."

"There must be some mistake about that. I understand she is still in the house."

"Who told you so?"

"One of the maidservants."

"We had better have the maid in and question her. What is her name?"

"Milly-Milly Saker."

Merrington touched the bell, and told the maidservant who answered it to send in Milly Saker.

The girl came in almost immediately, looking half defiant and half afraid. Merrington glanced at her keenly.

"You're the girl I saw dusting the hall this morning," he said. "Why did you not come in with the other servants to be examined?"

"Because I wasn't here," answered the girl pertly.

"Where were you?"

"Down in the village, at my mother's place."

"Who gave you permission to go?"

"Mrs. Rath, the housekeeper."

"Did you ask her for leave of absence?"

"No. She knew my mother was ill, and she said to me after breakfast, 'Milly, would you like to go and see your mother this morning?' I said, yes, I should, if she could spare me. She told me she could, so I thanked her and went."

Superintendent Merrington and Captain Stanhill exchanged glances. The same thought occurred to both of them. Mrs. Rath, the housekeeper, had a.s.sured them that she had sent all the servants to the library to be examined. Merrington turned to the girl again.

"Mrs. Rath's daughter was staying with her last night, wasn't she?"

"Yes."

"Is she still here?"

"Yes."

"Are you quite sure of that?"

"Yes, when I was outside about half an hour ago, I saw her through the window, sitting in her mother's room."

This piece of information conveyed some significance to Merrington's mind which was not apparent to Caldew. He paused for a moment, and then continued abruptly:

"Where were you last night at the time of the murder?"

"Please, sir, I don't know nothing about it," responded the girl with a whimper.

"Control yourself, my good girl," said Captain Stanhill soothingly. "n.o.body suggests you had anything to do with it."

For reply, the girl only sobbed loudly. Superintendent Merrington, who had his own methods of soothing frightened females, shook her roughly by the arm.

"Listen to me," he sternly commanded. "Do you want to go to prison?"

"N-o, sir," responded Milly, between a fresh burst of sobs.

"Then you'd better stop that noise and answer my questions, or I'll put you under lock and key till you do. Where were you last night when the murder was committed?"

"I was waiting at table till dessert was served," replied the girl, thoroughly subdued by the overbearing manner of the big man confronting her.