Vernon did not reply, only clasped and unclasped his hands nervously.

Collins wheeled around upon him abruptly, his face very stern.

"Come," he demanded, "let's have it out, once for all. I'm sick of this shilly-shally. Why can't you let Markeld take care of himself?"

"Because you're not playing fairly."

"What do you mean by fairly?"

"I mean openly, honestly--as gentlemen should."

"You forget that this is diplomacy--and that we don't live in the Golden Age. We fight with such weapons as come to hand. It's the game."

"Yes--as you understand it. A gang of cutthroats might say the same thing."

Collins flushed a little, but managed to keep his temper.

"I understand it as all diplomats understand it. I take no advantage that every diplomat would not take."

"Then G.o.d save me from diplomats!" retorted Vernon.

Collins flushed again, more deeply, and his eyes flashed with sudden fire.

"Your words verge upon the insulting," he said, after a moment. "I warn you not to try my patience too far. Perhaps, after this, you will see fit to choose other company--company more in accord with your really absurd ideals. But I would remind you of one thing--your career depends upon this affair. If it succeeds, you succeed. If it fails through any fault of yours, you are ruined. I a.s.sure you the fault will not be overlooked nor extenuated. You will pay for it!"

Vernon looked at him without answering, but his glance was full of meaning. Then he turned and left the room.

For a moment his companions stared after him--they had read his glance aright.

"We'll have to look sharp," said Collins, at last, "or he'll cause us trouble--he's ripe for it, confound him! We'd better wire the home office to hurry things up."

"Yes," agreed Blake, "there's no reasoning with a man in love."

"Nor frightening him," added Collins. "I'm afraid I made a mistake taking that tack. I'll go down and get off a message."

As he opened the door, he fancied that a figure melted into the shadow at the end of the hall. But his attention was distracted from it, for an instant later, he heard a step on the stair, and the Prince of Markeld mounted from the floor below, pa.s.sed him with the slightest possible inclination of the head, and continued upward. Collins, staring after him, standing still as death, heard him enter the apartment of the Rushfords.

He remained a moment where he was, his heart heavy with foreboding, then he descended slowly to the office, his head bent, deep in thought. So preoccupied was he that he did not see the sleek face which leered at him from the shadow into which the dim figure had vanished.

The spy listened a moment intently; then, with a tread soft as a cat's, mounted the stair to the floor above.

"Of course, dad," Susie had said, in the early evening, "you will have to stay at home to-night since the Prince is coming to see you."

"Oh, it's not I he's coming to see," rejoined Rushford, easily. "In fact, he'll probably be tickled to death to find me out.''

"He's not going to find you out," retorted Susie, firmly. "You're going to stay right here."

"Nonsense, my dear! Why, when I was courting your mother--"

"What has that to do with it?" demanded Sue, very crimson. "Do you mean to say that someone is courting someone around here?"

"Of course, every man may be mistaken at times."

"Well, take my word for it, you're badly mistaken this time."

"Oh!" said her father, with a.s.sumed astonishment. "Am I? Then what is all this about?"

"And even if they were," continued Susie, a little unsteadily, "they do it differently from the American way."

"How do they do it, for heaven's sake?"

"Why, dad, how should I know?"

"You seem to have considerable information on the subject."

"I have enough information to know," retorted Sue, with some heat, "that in Europe, a young man calls upon the head of the family, and not upon any of its younger female members."

"I have always understood that Europe was behind the times," observed her father, "but I never suspected it was as bad as that. However, I take your word for it--I always do, you know. I suppose you and Nell will have to stay in your rooms."

"Oh, no," said Sue, "we may be present, so long as our chaperon is there."

"So I'm to do some chaperoning at last, am I?" queried her father. "The job has ceased to be a sinecure. I suppose I'll have to do all the talking, since young girls, of course, may only speak when spoken to and then must answer with a yes or no. Really, my dear, you're setting yourself an exceedingly difficult part!"

"Where did you learn so much about it, dad?"

"I'm reasoning by deduction--all this follows from what you've already told me. Well, I'll do my best to entertain this Dutchman. What does he talk about? Wiener-wurst and sauerkraut?"

"Oh, no," said Susie, with a reminiscent smile and a heightened colour; "he talks about things much more interesting than those."

And, indeed, the first moments past, Rushford found the Prince an entertaining fellow, with a fund of anecdote and experience decidedly unusual. But conversations of this sort are rarely worth recording; the less so in this instance, since the Prince had taken care to seat himself where he had a good view of the enchanting Susie, and that vision more than once caused his thoughts to wander. Still, they discussed America and Europe, art, nature, the universe--none of which has anything to do with this story--everything, in short, except the warm, palpitating human heart, with which we are princ.i.p.ally concerned--and it was very late before the Prince finally arose to go.

Sue whispered her thanks as she kissed her father good-night.

"Good old daddy!" she said, and patted him on the cheek. "And it wasn't such a trial, after all, was it?"

Her father looked down at her quizzically.

"No, my dear," he answered. "In fact, I rather enjoyed it. I fancy he'd be a mighty interesting talker if there weren't any distractions around.

Not that I blame him," he added, hastily. "I was that way myself once upon a time," and he bent and kissed her tenderly again.

Susie, before her gla.s.s, stared at herself long and earnestly, then took down her hair and proceeded to arrange it in various ways. At last, she got out a diamond bracelet, placed it tiara-wise upon her head, and studied the effect. She was thus engaged when an agitated tap at the door gave her a mighty start, and she had just time to s.n.a.t.c.h off the decoration when Nell burst in, her face white with emotion.

"Why, what is it, Nellie?" cried her sister, springing up.

"I--I've lost it!" gasped Nell, sinking limply into a chair, and trembling convulsively. "I'm sure--it's been stolen!"

"Lost it!" echoed Sue, reviewing in one quick mental flash Nell's most valuable possessions. "Not the diamond necklace!"