"Forgive you! Of course I do, sweetheart; only do not cry, or they will certainly suspect something when you sit down to dinner."

His argument decided her, and she slowly dried her tears, saying:

"I only wish I could go to Charing Cross to see you off. But an hour ago I telephoned to your sister Marion to come and dine with us, and go with me to a concert at Queen's hall."

"And she accepted?" he asked, quickly, almost breathlessly.

Rolfe gave a sigh of relief. At any rate neither his sister nor his well-beloved would be at Charing Cross at nine that evening.

"I must try and bring her to the station, if possible. Does she know you are going?" asked the girl.

"Oh, yes. But I particularly asked her not to see me off."

"In order that I might come alone. Oh! how very good of you, Charlie!"

"No. Forgive me for saying so, but like a good many men who travel a lot I never like being seen off--not even by you, yourself, my darling!"

"Very well," she sighed, looking up into his serious eyes. "I must, I suppose, act as you wish. May G.o.d protect you, my dearest, and bring you back again in safety to me." Then as he whispered into her ear words of courage and ardent affection, with linked arms they re-traced their steps back to Earl's Court Road, where, with lingering reluctance, he took affectionate leave of her.

Having watched her turn the corner, he went slowly back towards Earl's Court Station, and as he did so, beneath his breath he murmured "Ah! if she knew--if she knew! But she must never know--she shall never know-- never as long as I have breath. I love her--love her better than my life--and she is mine. Yet--yet how can I, after--after--"

And he sighed deeply without concluding the sentence, while his face went ashen pale at the thought which again crossed his mind--a thought, secret and terrible.

CHAPTER FOUR.

WHICH IS DISTINCTLY MYSTERIOUS.

Max Barclay, on leaving Dr Petrovitch, had taken a cab straight to Charlie's chambers in Jermyn Street, arriving there shortly before six.

Green, his man, had told him, however, that his master had returned soon after luncheon, ordered two big bags to be packed, and had left with them upon a hansom, merely saying that he should be absent a week, or perhaps two, and that no letters need be forwarded.

Max was not surprised at this sudden departure, for old Statham had a habit of sending his confidential secretary hither and thither at almost a moment's notice. The old fellow's financial interests were enormous, and widely dispersed. Some of them were in Servia and Bulgaria, where he held concessions of great value.

He had had a finger in most of the financial undertakings in the Near East during the past fifteen years or so. Out of the Oriental Railway extension from Salonica to the Servian frontier alone he had, it was said, made a huge fortune, for he was the original concessionaire. For some years he had lived in the Balkans, looking after his interests in person, but nowadays he entrusted it all to his agents with occasional visits by this confidential secretary.

Therefore Max suspected that Charlie had left for the East, more especially that at the hour he had left Jermyn Street he could have caught the afternoon Continental service from Charing Cross _via_ Boulogne.

So he went on to his own rooms, changed, dined at the Automobile Club, his mind being full of what the Doctor had told him concerning Charlie and Maud. He had, of course, suspected it all along. Marion knew the truth, but, loyal to her brother, she had said no word. Yet when he had seen Rolfe with the ex-statesman's pretty daughter, he had long ago guessed that the pair were more than mere friends.

That the Doctor disapproved of the affair was somewhat disconcerting, more especially as he had openly declared that he had other ideas of Maud's future. What were they? Was her father hoping that she would marry some young Servian--a man of his own race?

He sat in the club over a cigar till nearly nine o'clock, wondering how he could a.s.sist the man who was not only his dearest friend but brother of the girl to whom he was so entirely devoted and whom he intended to make his wife.

He sighed with regret when he thought of her undergoing that shop drudgery to which she had never been accustomed. The early rising, the eternal drive of business, the calm, smiling exterior towards those pettish, snapping women customers, and those hasty scrambles for meals.

He had seen her engaged in her business, and he had met her after shop hours, pale, worn, and f.a.gged out.

And yet he--the man who was to be her husband--lived in that ease and idleness which an income of twelve thousand a year secured.

Had Petrovitch not told him that Marion was dining at Cromwell Road and going to a concert with Maud afterwards, he would have wired to her to meet him. But he knew how devoted the two girls were to each other, notwithstanding the difference of their stations, and how Maud welcomed Marion's company at concerts or theatres to which her father so seldom cared to go.

Suddenly it occurred to him that if he returned to the Doctor's he would meet Marion there later on, when she came back from Queen's Hall, and be able to drive her home to that dull street at the back of Oxford Street where the a.s.sistants of Cunnington's, Limited, "lived in."

This reflection aroused him, and, glancing at the smoking-room clock, he saw it wanted a quarter to ten.

Two other men, friends of his, were sitting near, discussing motoring matters, and their eternal chatter upon cylinders, tyres, radiators, and electric horns bored him. Therefore he rose, put on his coat, and, hailing a cab, told the man to drive to Victoria, where he took the underground railway to Gloucester Road Station.

From there to the house of the ex-Minister was only a very short walk.

The night was mild, bright, and starlight, for the haze of sundown which had threatened rain had been succeeded by a brilliant evening. Cromwell Road is always deserted at that hour before the cabs and carriages begin to return from restaurants and theatres, and as he strolled along, knowing that he was always welcome at the Doctor's house to chat and smoke, his was the only footfall to be heard in the long open thoroughfare.

Ascending the steps beneath the wide portico, he pressed the visitors'

bell, but though he waited several minutes, there was no response.

Again and again he rang, but the bell was apparently out of order, so he gave a sounding rat-tat with the knocker.

Then he listened intently; but to his surprise no one stirred.

Over the door was a bright light, as usual, revealing the number in great white numerals, and through the c.h.i.n.ks of the Venetian blinds of the dining-room he could see that the electric lamps were on.

Again and again he rang and knocked. It was surely curious, he thought, that all the servants should be out, even though the Doctor might be absent. The failure to arouse anybody caused him both surprise and apprehension. Though the electric bell might be out of order, yet his loud knock must be heard even up to the garrets. London servants are often neglectful in the absence of their masters, and more especially if there is no mistress, yet it seemed hardly creditable that they would go out and leave the place unattended.

Seven or eight times he repeated his summons, standing upon the door-steps with his ears strained to catch the slightest sound.

Once he thought he heard distinctly the noise of stealthy footsteps in the hall, and he held his breath. They were repeated. He was quite certain that his ears had not deceived him, for in the street all was silent as the grave. He heard someone moving within as though creeping slowly from the door.

What could it mean? Were thieves within?

He examined the door to see if the lock had been tampered with, but, so far as he could discern, it was untouched. He was undecided how to act, though now positively certain that something unusual was in progress.

He glanced up and down the long road, with its rows of gas lamps, but no one was visible. The only sound was the far-distant rat-tat of the postman on his last round.

For the Doctor to be out of an evening was very unusual; and that stealthy footstep had alarmed him. If there were actually thieves, then they had probably entered by the area door. Max was by no means a coward. There was a mystery there--a mystery he intended to at once investigate.

Doctor Petrovitch was one of his dearest friends and he meant to act as a friend should act.

What puzzled him most of all was the absence of the servants. All of them were apparently highly trustworthy, yet the foreigner in London, he remembered, often engaged servants without sufficient inquiry into their past.

For a few moment he stood motionless, his ears strained, at the door.

The movement was repeated. Someone seemed to be leaving the dining-room, for he distinctly heard the light footfall.

Therefore, with scarce a sound, he crept down the steps to the pavement and descended the winding flight to the area door. With great caution he turned the handle, but alas! the k.n.o.b went right round in his hand, the door remaining still fastened.

A light showed in the kitchen, but whether anyone was there he of course could not tell. Again he tried the door, but without avail. It was securely fastened, while, as far as he could ascertain, there were no marks of any forcible entry.

Should he rap at the door? Or would that further alarm the intruders?

He had knocked many times at the front door, it was true, but they would no doubt wait until they believed he had gone. Or else they might escape by the rear of the premises.

What should he do?

He hesitated again, with bated breath.