<h2><SPAN name="CHAPTER_XX" id="CHAPTER_XX"></SPAN>CHAPTER XX</h2>
<p>Heldon Foyle had been prepared to take any risk rather than allow the
Princess Petrovska to escape him again. There was nothing against her
but suspicion. It was for him to find evidence that might link her with
the crime. It is in such things that the detective of actuality differs
from the detective of fiction. The detective of fiction acts on moral
certainties which would get the detective of real life into bad trouble.
To arrest the Princess was out of the question; even to detain her might
make matters awkward. Yet the superintendent had made up his mind to
afford Wills the butler a sight of her at all costs. If Wills identified
her it would be at least another link in the chain of evidence that was
being forged.</p>
<p>He carried the butler in a taxicab with him to the nearest corner to the
Duke of Burghley's house. A well-groomed man sauntered up to them and
shook hands warmly with Foyle.</p>
<p>"She has not come out yet," he said.</p>
<p>"Good," exclaimed Foyle. "Come on, Wills. You have a good look at this
woman when she does come out, and stoop down and tie your shoe-lace if
she's anything like the woman who visited Robert Grell on the night of
the murder. Be careful now. Don't make any mistakes. If you identify her
you'll probably have to swear to her in court."</p>
<p>"But I never saw her face," complained Wills help<!-- Page 111 --><span class="pagenum"><SPAN name="Page_111" id="Page_111"></SPAN></span>lessly. "I told you I
was not certain I'd know her again."</p>
<p>He was palpably nervous and unwilling to play the prominent part that
had been assigned to him. Foyle laughed reassuringly.</p>
<p>"Never mind. You have a look at her, old chap. You never know in these
cases. You may remember her when you see her. Every one walks
differently, and you may spot her by that. It won't do any harm if you
don't succeed."</p>
<p>He led Wills to a spot a few paces away from the house, but out of view
of any one looking from the windows, and gave him instructions to remain
where he was. He himself returned to the corner where Taylor, the
detective-inspector who had greeted them when they drove up, was
waiting. The other end of that side of the square was guarded by one of
Taylor's assistants. Lola was trapped—if Foyle wished her to be
trapped.</p>
<p>He beckoned to a uniformed constable who was pacing the other side of
the road. The man nodded—detectives whatever their rank are never
saluted—and took up his position a few paces away.</p>
<p>They had not long to wait. A taxicab whizzed up to the house, evidently
summoned by telephone. Wills was staring as though fascinated at the
slim, erect figure of the woman outlined on the steps of the house. He
half stooped, then straightened himself up again. The superintendent
muttered an oath under his breath and nodded to the loitering policeman.
The constable immediately sprang into the roadway with arm outstretched,
and the cab, which was just gathering way,<!-- Page 112 --><span class="pagenum"><SPAN name="Page_112" id="Page_112"></SPAN></span> was pulled up with a jerk.
The blue uniform is more useful in some cases than the inconspicuous
mufti of the C.I.D.</p>
<p>"Get hold of Wills and bring him after us to Malchester Row Police
Station." And, opening the door, he stepped within as the driver dropped
in the clutch.</p>
<p>The Princess had half risen and gave a little cry of dismay at the
intrusion. With grim, set face the detective adjusted his tall form to
the limits of the cab and sat down beside her. His hand encircled her
wrist, and he forced her back to the seat.</p>
<p>"I shouldn't try to open the door if I were you," he said quietly. "You
might fall out."</p>
<p>The woman dropped back and did some quick thinking. She had no
difficulty in guessing who Foyle was, and she could scarcely have failed
to see the staring figure of the butler as she left the Duke of
Burghley's house. She fenced for time, doing the astonished, outraged,
half-frightened innocent to perfection.</p>
<p>"What does this mean? How dare you molest me? Where are you taking me?"</p>
<p>The detective smiled easily as he answered in the formal words of C.I.D.
custom: "I am a police officer—perhaps I needn't tell you that—and I
am taking you to Malchester Row Police Station."</p>
<p>"To arrest me? You would dare? Do you know I am the Princess Petrovska?
There is some mistake. I shall appeal to the Russian Ambassador. What do
you say I have done? I am a friend of Lady Eileen Meredith, the daughter
of the Duke of Burghley. She will tell you I have only just left her.
You are confusing me with some one else."<!-- Page 113 --><span class="pagenum"><SPAN name="Page_113" id="Page_113"></SPAN></span></p>
<p>It was admirably done. The mixture of indignation and haughtiness might
have imposed upon some people, and the threat of appeal to the Russian
Ambassador had been very adroit. Heldon Foyle merely nodded.</p>
<p>"This is not arrest," he replied. "It is not even detention—unless you
force me to it. I am inviting you to accompany me to give an account of
your movements on the night that Harry Goldenburg was murdered. I will
call your bluff, Lola, and we will call at the ambassador's if you
like."</p>
<p>She made a gesture with one hand, as of a fencer acknowledging a hit,
and, turning her head, smiled sweetly into his face. Nevertheless, in
spite of everything, she felt a little nervous. She had gone to see
Eileen with her eyes not fully open to the risk she ran. Deftly used,
newspapers have their uses. In supplying the story of the murder to the
pressmen, Foyle had omitted all mention of the finding of the miniature.
The woman had not known that Scotland Yard had a portrait of her, and
had deemed it unlikely that she would be recognised by the watchers of
the house. Although she had lived by her wits in many quarters of the
world, she had hitherto avoided trouble with the police in England. She
wondered how much Foyle knew. It was evidently of no use trying to
impress him with the importance of her rank and connections. Princesses
are cheap in Russia.</p>
<p>"You are Mr. Heldon Foyle, of course," she said. "I have heard that you
are very clever. I don't see what I can have had to do with the murder,
even if I am Lola Rachael—which I admit."</p>
<p>"We shall see. Can you prove where you were be<!-- Page 114 --><span class="pagenum"><SPAN name="Page_114" id="Page_114"></SPAN></span>tween ten o'clock, when
you left the Palatial Hotel, and midnight on that date?"</p>
<p>She laughed merrily. "You are not so clever as I thought," she
exclaimed. "Do you think that I am a murderess? I went straight to an
hotel near Charing Cross—the Splendid—and caught the nine o'clock boat
train to Paris. It is easily proved."</p>
<p>Foyle shifted to the seat opposite, so that he could see her face more
easily.</p>
<p>"Then you don't deny that you visited Grosvenor Gardens that night, that
you were admitted by Ivan Abramovitch, Grell's valet, and taken to his
study?"</p>
<p>"Of course I do," she retorted laughingly. "If that's all you've got to
go upon you may as well let me go now."</p>
<p>"Very well. We shall see," he answered.</p>
<p>The cab stopped at Malchester Row Police Station.<!-- Page 115 --><span class="pagenum"><SPAN name="Page_115" id="Page_115"></SPAN></span></p>
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