Foyle took a typewritten sheet of paper from the other's hand. It read simply--

"DEAR MR. FOYLE,--You had better call your men off. We have got one of them safe, and hold him as a hostage for our own safety. If your people go on trying to make things unpleasant for us, things will get unpleasant for him. This is not melodrama, but brutal fact."

There was no signature. Foyle's square jaw became set and grim. He had no doubt that the unknown writer fully meant the threat. He liked Waverley, yet the thought of the other's peril did not sway him for a moment. The man had fallen a victim to one of the risks of his profession.

"Do they expect us to back down?" asked the superintendent harshly. "If Waverley has been fool enough to get himself in a fix, he must take his chance if we can't get him out. Let's have a look at this paper."

He thrust his hand in a drawer, and, flinging a pinch of black powder on the letter, sifted it gingerly to and fro. In a few seconds four finger-prints stared out blackly from the white surface. They were at right angles to the type, and just beneath it. Foyle's face relaxed in a pleased smile.

"They've given us something that may help us, after all, Green," he cried. "Look here; these two middle ones are the prints on the dagger.

Now let's see if we can learn anything from the typing."

Half an hour later three men stood in a tiny room, darkened, save for a vivid patch of white on a screen a yard and a half square. Foyle and Green watched the screen intently as the third man inserted the slide in the powerful magic lantern. Magnified enormously, the typewritten characters stood out vividly black against the white.

"What do you make of it, Green?" asked the superintendent after a pause.

"Remington machine, latest pattern," answered the other briefly. "The letter 'b' slightly battered, and the 'o' out of alignment. Used by a beginner. There is double s.p.a.cing between some of the lines and single in others. A capital 'W' has been superimposed on a small one."

"That's so," agreed his superior thoughtfully. "You might see if the Remington people can give us any help with that. If possible, get a list of all the people who have bought machines during this last six weeks.

It's a long shot, but long shots sometimes come off. And if you come into my room I'll give you a pistol. It'll be as well for you to carry one while you're on this case. I was shot at myself, to-day."

"Thank you, sir, I think I'll do without one," said the other quietly.

"My two fists are good enough for me."

"As you like," agreed Foyle, and Green departed on his mission. When he returned, he walked into Foyle's room and laid a long list before his chief. The superintendent cast his forefinger slowly down it.

"October 14," he read, "Mr. John Smith, c/o Israels, 404A Grave Street, Whitechapel." He looked up into the stolid face of Green. "That seems like it," he went on. "You and I will take a little trip this evening, Green. And I think you'd better have a pistol, after all."

CHAPTER XIV

To all callers, relatives, friends, newspaper men, alike, Eileen Meredith denied herself resolutely. "She has been rendered completely prostrate by the shock," said the _Daily Wire_ in the course of a highly coloured character sketch. Other statements, more or less true, with double and treble column photographs of herself, crept into other papers. Night and day a little cl.u.s.ter of journalists hung about, watching the front door, scanning every caller and questioning them when they were turned away. Now and again one would go to the door and make a hopeless attempt to see some member of the household.

But Eileen was not prostrate, in spite of the _Daily Wire_. She wanted to be alone with her thoughts. Her gay vivacity had deserted her, and she had become a sombre woman, with mouth set in rigid lines, and with a fierce intensity for vengeance, none the less implacable because she felt her impotence. In such unreasoning moods some women become dangerous.

She had curtly rejected her father's suggestion that she should see a doctor. Nor would she leave London to try and forget amid fresh surroundings.

"Here I will stay until Bob's murderer is punished," she had said, and her white teeth had come together viciously.

A night and a day had pa.s.sed since her interview with Heldon Foyle.

Reflection had not convinced her that his cold reason was right. She had made up her mind that Fairfield was the murderer. Nothing could shake her from that conviction. Scotland Yard, she thought, was afraid of him because he was a man of position. The square-faced superintendent who had spoken so smoothly was probably trying to shield him. But she knew. She was certain. Suppose she told all she knew? Her slim hands clenched till the nails cut her flesh, as she determined that he should pay the price of his crime. There was another justice than the law. If the law failed her----

A medical man or a student of psychology might have found an a.n.a.lysis of her feelings interesting. She had reached the border-line of monomania, yet he would have been a daring man who would have called her absolutely insane. Except to Foyle she had said nothing of the feeling that obsessed her.

With cool deliberation she unlocked a drawer of her escritoire and picked out a dainty little ivory-b.u.t.ted revolver with polished barrel.

It was very small--almost a toy. She broke it apart and pushed five cartridges into the chambers. With a furtive glance over her shoulder she placed it in her bosom, and then hastily returned to her chair by the fire and picked up a book. Her eyes skimmed the lines of type mechanically. She read nothing, although she turned the pages.

Presently she flung the book aside and, without ringing for a maid, dressed in an un.o.btrusive walking costume of deep black. She selected a heavy fur m.u.f.f and transferred the pistol to its interior. Her fingers closed tightly over the b.u.t.t. On her way to the door she was stopped by an apologetic footman.

"There's a lot of persons from the newspapers waiting out in the streets, Lady Eileen," he said.

"Indeed!" Her voice was cold and hard.

"They might annoy you. They stop every one who goes in or out."

She answered shortly and stepped out through the door he held open.

There was a quick stir among the reporters, and two of them hastily detached themselves and confronted her, hats in hand. She forced a smile.

"It's no use, gentlemen," she said. "I will not be interviewed." She looked very dainty and pathetic as she spread out her hands in a helpless little gesture. "Can I not appeal to your chivalry? You are besieging a house of mourning. And, please--please, I know what is in your minds--do not follow me."

She had struck the right note. There was no attempt to break her down.

With apologies the men withdrew. After all, they were gentlemen whose intrusion on a private grief was personally repugnant to them.

The girl reached Scotland Yard while Heldon Foyle was still in talk with Green. Her name at once procured her admission to him. She took no heed of the chair he offered, but remained standing, her serious grey eyes searching his face. He observed the high colour on her cheeks, and almost intuitively guessed that she was labouring under some impulse.

"Please do sit down," he pleaded. "You want to know how the case is progressing. I think we shall have some news for you by to-morrow. I hope it will be good."

"You are about to make an arrest?"

The words came from her like a pistol-shot. A light shot into her eyes.

The detective shook his head. He had seen the look in her face once before on the face of a woman. That was at Las Palmas, in a dancing-hall, when a Portuguese girl had knifed a fickle lover with a dagger drawn from her stocking. Lady Eileen was scarce likely to carry a dagger in her stocking, but--his gaze lingered for a second on the m.u.f.f, which she had not put aside. It was queer that she should not withdraw her hands.

"I don't say that. It depends on circ.u.mstances," he said gently.

Her face clouded. "I will swear that the man Fairfield killed him," she cried pa.s.sionately. "You will let him get away--you and your red tape."

He came and stood by her.

"Listen to me, Lady Eileen," he said earnestly. "Sir Ralph Fairfield did not kill Mr. Grell. Of that I have proof. Will you not trust us and wait a little? You are doing Sir Ralph a great injustice by your suspicions."

She laughed wildly, and flung herself away from him.

"You talk to me as though I were a schoolgirl," she retorted. "You can't throw dust in my eyes, Mr. Foyle. He has bought you. You are going to let him go. I know! I know! But he shall not escape."

The superintendent stroked his chin placidly. As if by accident he had placed himself between her and the door. He had already made up his mind what to do, but the situation demanded delicate handling.

"You will regret this when you are calmer," he said mildly.

He was uncertain in his mind whether to tell the distraught girl that her lover was not dead--that the murdered man was a rogue whom probably she had not seen or heard of in her life. He balanced the arguments mentally pro and con, and decided that at all hazards he would preserve his secret for the present. She took a step towards the door. She had drawn herself up haughtily.

"Let me pa.s.s, please," she demanded.

He did not move. "Where are you going?" he asked. Her eyes met his steadily.

"I am going to Sir Ralph Fairfield--to wring a confession from him, if you must know," she said. "Let me pa.s.s, please."