Although Sir Hugh had on frequent occasions been the guest of his son-in-law at the pretty Château de Lérouville, he had never expressed a wish, until the previous evening, to enter the Fortress of Haudiomont.
As a military man he knew well how zealously the secrets of all fortresses are guarded.
When, on the previous evening, Le Pontois had declared that it would be an easy matter for him to be granted a view of that great stronghold hidden away among the hill-tops, he had remarked: "Of course, my dear Paul, I would not for a moment dream of putting you into any awkward position. Remember, I am an alien here, and a soldier also! I haven't any desire to see the place."
"Oh, there is no question of that so far as you are concerned, Sir Hugh," Paul had declared with a light laugh. "The Commandant, who, of course, knows you, asked me a month ago to bring you up next time you visited us. He wished to make your acquaintance. In view of the recent war our people are nowadays no longer afraid of England, you know!"
So the visit had been arranged, and Sir Hugh was to take his déjeuner up at the fort.
That day Blanche, with Enid, who had accompanied her stepfather, drove the runabout car up the valley to the little station at Dieue-sur-Meuse, and took train thence to Commercy, where Blanche wished to do some shopping.
So, when the two men had left to ascend the steep hillside, where the great fortress lay concealed, Blanche, who had by long residence in France become almost a Frenchwoman, kissed little Ninette au revoir, mounted into the car, and, taking the wheel, drove Enid and Jean, the servant, who, as a soldier, had served Paul during the war, away along the winding valley.
As they went along they passed a battalion of the 113th Regiment of the Line, heavy with their knapsacks, their red trousers dusty, returning from the long morning march, and singing as they went that very old regimental ditty which every soldier of France knows so well:
"La Noire est fille du cannon
Qui se fout du qu'en dira-t-on.
Nous nous foutons de ses vertus,
Puisqu'elle a les tétons pointus.
Voilà pourquoi nous la chantons:
Vive la Noire et ses tétons!"
And as they passed the ladies the officer saluted. They were, Blanche explained, on their way back to the great camp at Jarny.
Bugles were sounding among the hills, while ever and anon came the low boom of distant artillery at practice away in the direction of Vigneulles-les-Hattonchatel, the headquarters of the sub-division of that military region.
It was Enid's first visit, and the activity about her surprised her. Besides, the officers were extremely good-looking.
Presently they approached a battery of artillery on the march, with their rumbling guns and grey ammunition wagons, raising a cloud of dust as they advanced.
Blanche pulled the car up at the side of the road to allow them to pass, and as she did so a tall, smartly-groomed major rode up to her, and, saluting, exclaimed in French, "Bon jour, Madame! I intended to call upon you this morning. My wife has heard that you have the general, your father, visiting you, and we wanted to know if you would all come and take dinner with us to-morrow night?"
"I'm sure we'd be most delighted," replied Paul's wife, at the same time introducing Enid to Major Delagrange.
"My father has gone up to the fort with my husband," Blanche added, bending over from the car.
"Ah, then I shall meet them at noon," replied the smart officer, backing his bay horse. "And you ladies are going out for a run, eh? Beautiful morning! We've been out manœuvring since six!"
Blanche explained that they were on a shopping expedition to Commercy, and then, saluting, Delagrange set spurs into his horse and galloped away after the retreating battery.
"That man's wife is one of my best friends. She speaks English very well, and is quite a good sort. Delagrange and Paul were in Tonquin together and are great friends."
"I suppose you are never very dull here, with so much always going on?" Enid remarked. "Why anyone would believe that a war was actually in progress!"
"This post of Eastern France never sleeps, my dear," was Madame's reply. "While you in England remain secure in your island, we here never know when trouble may again arise. Therefore, we are always preparing—and at the same time always prepared."
"It must be most exciting," declared the girl, "to live in such uncertainty. Is the danger so very real, then?" she asked. "Father generally pooh-poohs the notion of there being any further trouble with Germany."
"I know," was Blanche's answer. "He has been sceptical hitherto. He is always suspicious of the Boche!"
They had driven up to the little wayside station, and, giving the car over to Jean with instructions to meet the five-forty train, they entered a first-class compartment.
Between Dieue and Commercy the railway follows the course of the Meuse the whole way, winding up a narrow, fertile valley, the hills of which on the right, which once were swept by the enemy's shells and completely devastated, were all strongly fortified with great guns commanding the plain that lies between the Meuse and the Moselle.
They were passing through one of the most interesting districts in all France—that quiet, fertile valley where stood peaceful, prosperous homesteads, and where the sheep were once more calmly grazing—the valley which for four years was so strongly contested, and where every village had been more or less destroyed.
At the headquarters of the Sixth Army Corps of France much was known, much that was still alarming. It was that knowledge which urged on those ever active military preparations, for placing that district of France that had been ravaged by the Hun in the Great War in a state of complete fortification as a second line of defence should trouble again arise.
Thoughts such as these arose in Enid's mind as she sat in silence looking forth upon the panorama of green hills and winding stream as they slowly approached the quaint town of Commercy.
Arrived there, the pair lunched at the old-fashioned Hôtel de Paris, under the shadow of the great château, once the residence of the Dukes de Lorraine, and much damaged in the war, but nowadays a hive of activity as an infantry barracks. And afterwards they went forth to do their shopping in the busy little Rue de la République, not forgetting to buy a box of "madeleines." As shortbread is the specialty of Edinburgh, as butterscotch is that of Doncaster, "maids-of-honour" that of Richmond, and strawberry jam that of Bar-le-Duc, so are "madeleines" the special cakes of Commercy.
The town was full of officers and soldiers. In every café officers were smoking cigarettes and gossiping after their déjeuner; while ever and anon bugles sounded, and there was the clang and clatter of military movement.
As the two ladies approached the big bronze statue of Dom Calmet, the historian, they passed a small café. Suddenly a man idling within over a newspaper sprang to his feet in surprise, and next second drew back as if in fear of observation.
It was Walter Fetherston. He had come up from Nancy that morning, and had since occupied the time in strolling about seeing the sights of the little place.
His surprise at seeing Enid was very great. He knew that she was staying in the vicinity, but had never expected to see her so quickly.
The lady who accompanied her he guessed to be her stepsister; indeed, he had seen a photograph of her at Hill Street. Had Enid been alone, he would have rushed forth to greet her; but he had no desire at the moment that his presence should be known to Madame Le Pontois. He was there to watch, and to meet Enid—but alone.
So after a few moments he cautiously went forth from the café, and followed the two ladies at a respectful distance, until he saw them complete their purchases and afterwards enter the station to return home.
On his return to the hotel he made many inquiries of monsieur the proprietor concerning the distance to Haudiomont, and learned a good deal about the military works there which was of the greatest interest. The hotel-keeper, a stout Alsatian, was a talkative person, and told Walter nearly all he wished to know.
Since leaving Charing Cross five days before he had been ever active. On his arrival in Paris he had gone to the apartment of Colonel Maynard, the British military attaché, and spent the evening with him. Then, at one o'clock next morning, he had hurriedly taken his bag and left for Dijon, where at noon he had been met in the Café de la Rotonde by a little wizen-faced old Frenchwoman in seedy black, who had travelled for two days and nights in order to meet him.
Together they had walked out on that unfrequented road beyond the Place Darcy, chatting confidentially as they went, the old lady speaking emphatically and with many gesticulations as they walked.
Truth to tell, this insignificant-looking person was a woman of many secrets. She was a "friend" of the Sûreté Générale in Paris. She lived, and lived well, in a pretty apartment in Paris upon the handsome salary which she received regularly each quarter. But she was seldom at home. Like Walter, her days were spent travelling hither and thither across Europe.
It would surprise the public if it were aware of the truth—the truth of how, in every country in Europe, there are secret female agents of police who (for a monetary consideration, of course) keep watch in great centres where the presence of a man would be suspected.
This secret police service is distinctly apart from the detective service. The female police agent in all countries works independently, at the orders of the Director of Criminal Investigation, and is known to him and his immediate staff.
Whatever information that wrinkled-faced old Frenchwoman in shabby black had imparted to Fetherston it was of an entirely confidential character. It, however, caused him to leave her about three o'clock, hurry to the Gare Porte-Neuve, and, after hastily swallowing a liqueur of brandy in the buffet, depart for Langres.
Thence he had travelled to Nancy, where he had taken up quarters at the Grand Hotel in the Place Stanislas, and had there remained for two days in order to rest.
He would not have idled those autumn days away so lazily, even though he so urgently required rest after that rapid travelling, had he but known that the person who occupied the next room to his—that middle-aged commercial traveller—an entirely inoffensive person who possessed a red beard, and who had given the name of Jules Dequanter, and his nationality as Belgian, native of Liège—was none other than Gustav Heureux, the man who had been recalled from New York by the evasive doctor of Pimlico.
And further, Fetherston, notwithstanding his acuteness in observation, was in blissful ignorance, as he strolled back from the station at Commercy, up the old-world street, that a short distance behind him, carefully watching all his movements, was the man Joseph Blot himself—the man known in dingy Pimlico as Dr. Weirmarsh.