"Ah! that is good of you," cried Nur-el-Din, "anyhow, the little box is safer with you than with me. See, I will wrap it up and seal it, and then you will take it home with you, n'est-ce pas?"

She opened a drawer and swiftly hunting among its contents produced a sheet, of white paper, and some sealing-wax. She wrapped the box in the paper and sealed it up, stamping the seals with a camel signet ring she drew off her finger. Then she handed the package to Barbara.

There was a knock at the door. The maid, noiselessly arranging Madame's dresses in the corner opened it.

"You will take care of it well for me," the dancer said to Barbara, and her voice vibrated with a surprising eagerness, "you will guard it preciously until I come for it..." She laughed and added carelessly: "Because it is a family treasure, a life mascotte of mine, hein?"

Then they heard Strangwise's deep voice outside.

Nur-el-Din started.

"Le Captaine is there, Madame," said the French maid, "'e say Monsieur Mackwayte ask for Mademoiselle!"

The dancer thrust a little hand from the folds of her silken kimono.

"Au revoir, ma pet.i.te," she said, "we shall meet again. You will come and see me, nest-ce pas? And say nothing to anybody about..." she pointed to Barbara's bag where the little package was reposing, "it shall be a secret between us, hein? Promise me this, mon enfant!"

"Of course, I promise, if you like!" said Barbara, wonderingly.

At half-past eight the next morning Desmond Okewood found himself in the ante-room of the Chief of the Secret Service in a cross and puzzled mood. The telephone at his bedside had roused him at 8 a.m. from the first sleep he had had in a real bed for two months. In a drowsy voice he had protested that he had an appointment at the War Office at 10 o'clock, but a curt voice had bidden him dress himself and come to the Chief forthwith. Here he was, accordingly, breakfastless, his chin smarting from a hasty shave. What the devil did the Chief want with him anyhow? He wasn't in the Secret Service, though his brother, Francis, was.

A voice broke in upon his angry musing.

"Come in, Okewood!" it said.

The Chief stood at the door of his room, a broad-shouldered figure in a plain jacket suit. Desmond had met him before. He knew him for a man of many questions but of few confidences, yet his recollection of him was of a suave, imperturbable personality. To-day, however, the Chief seemed strangely preoccupied. There was a deep line between his bushy eyebrows as he bent them at Desmond, motioning him to a chair. When he spoke, his manner was very curt.

"What time did you part from the Mackwaytes at the theatre last night?"

Desmond was dumbfounded. How on earth did the Chief know about his visit to the Palaceum? Still, he was used to the omniscience of the British Intelligence, so he answered promptly:

"It was latish, sir; about midnight, I think!"

"They went home to Seven Kings alone!"

"Yes, sir, in a taxi!" Desmond replied.

The Chief contemplated his blotting-pad gloomily. Desmond knew it for a trick of his when worried.

"Did you have a good night?" he said to Desmond, suddenly.

"Yes," he said, not in the least understanding the drift of the question. "... though I didn't mean to get up quite so early!"

The Chief ignored this sally.

"Nothing out of the ordinary happened during the night, I suppose?" he asked again.

Desmond shook his head.

"Nothing that I know of, sir," he said.

"Seen Strangwise this morning?"

Desmond gasped for breath. So the Chief knew about him meeting Strangwise, too!

"No, sir!"

A clerk put his head in at the door.

"Well, Matthews!"

"Captain Strangwise will be along very shortly, sir," he said.

The Chief looked up quickly.

"Ah, he's all right then! Good."

"And, sir," Matthews added, "Scotland Yard telephoned to say that the doctor is with Miss Mackwayte now."

Desmond started up.

"Is Miss Mackwayte ill?" he exclaimed.

The Chief answered slowly, as Matthews withdrew: "Mr. Mackwayte was found murdered at his house early this morning!"

CHAPTER IV. MAJOR OKEWOOD ENCOUNTERS A NEW TYPE

There is a sinister ring about the word "murder," which reacts upon even the most hardened sensibility. Edgar Allan Poe, who was a master of the suggestive use of words, realized this when he called the greatest detective story ever written "The Murders in the Rue Morgue." From the very beginning of the war, Desmond had seen death in all its forms but that word "murdered," spoken with slow emphasis in the quiet room, gave him an ugly chill feeling round the heart that he had never experienced on the battlefield.

"Murdered!" Desmond repeated dully and sat down. He felt stunned.

He was not thinking of the gentle old man cruelly done to death or of the pretty Barbara prostrate with grief. He was overawed by the curious fatality that had plucked him from the horrors of Flanders only to plunge him into a tragedy at home.

"Yes," said the Chief bluntly, "by a burglar apparently--the house was ransacked!"

"Chief," he broke out, "you must explain. I'm all at sea! Why did you send for me? What have you got to do with criminal cases, anyway? Surely, this is a Scotland Yard matter!"

The Chief shook his head.

"I sent for you in default of your brother, Okewood!" he said.

"You once refused an offer of mine to take you into my service, but this time I had to have you, so I got the War Office to wire..."

"Then my appointment for ten o'clock to-day was with you?"

Desmond exclaimed in astonishment.

The Chief nodded.