office, with between it and the mill proper a spacious garage in which, so they were told, the six lorries belonging to the syndicate were housed. Three machines were there, two lying up empty, the third, with engine running and loaded with blocks, being ready to start. They would have liked to examine the number plate, but in the presence of the foreman it was hardly possible. Finally they walked across the clearing to where felling and lopping was in progress, and inspected the operations. When they left shortly after with a promise to return to meet Mr. Coburn, there was not much about the place they had missed.
“That business is just as right as rain,” Merriman declared when they were once more in the boat. “And that foreman's all right too. I'd stake my life he wasn't hiding anything. He's not clever enough for one thing.”
“So I think too,” Hilliard admitted. “And yet, what about the game with the number plates? What's the idea of that?”
“I don't know. But all the same I'll take my oath there's nothing wrong about the timber trade. It's no go, Hilliard. Let's drop chasing wild geese and get along with our trip.”
“I feel very like it,” the other replied as he sucked moodily at his pipe. “We'll watch for another day or so, and if we see nothing suspicious we can clear out.”
But that very evening an incident occurred which, though trifling, revived all their suspicions and threw them at once again into a sea of doubt.
Believing that the Coburns would by that time have returned, they left the launch about five o'clock to call. Reaching the edge of the clearing almost directly behind the house, they passed round the latter and rang.
The door was opened by Miss Coburn herself. It happened that the sun was shining directly in her eyes, and she could not therefore see her visitors' features.
“You are the gentlemen who wished to see Mr. Coburn, I presume?” she said before Merriman could speak. “He is at the works. You will find him in his office.”
Merriman stepped forward, his cap off.
“Don't you remember me, Miss Coburn?” he said earnestly. “I had the pleasure of meeting you in May, when you were so kind as to give me petrol to get me to Bordeaux.”
Miss Coburn looked at him more carefully, and her manner, which had up to then been polite, but coolly self-contained, suddenly changed. Her face grew dead white and she put her hand sharply to her side, as though to check the rapid beating of her heart. For a moment she seemed unable to speak, then, recovering herself with a visible effort, she answered in a voice that trembled in spite of herself:
“Mr. Merriman, isn't it? Of course I remember. Won't you come in? My father will be back directly.”
She was rapidly regaining self-control, and by the time Merriman had presented Hilliard her manner had become almost normal. She led the way to a comfortably furnished sitting-room looking out over the river.
“Hilliard and I are on a motor launch tour across France,” Merriman went on. “He worked from England down the coast to Bordeaux, where I joined him, and we hope eventually to cross the country to the Mediterranean and do the Riviera from the sea.”
“How perfectly delightful,” Miss Coburn replied. “I envy you.”
“Yes, it's very jolly doing these rivers and canals,” Hilliard interposed. “I have spent two or three holidays that way now, and it has always been worth while.”
As they chatted on in the pleasant room the girl seemed completely to have recovered her composure, and yet Merriman could not but realize a constraint in her manner, and a look of anxiety in her clear brown eyes. That something was disturbing her there could be no doubt, and that something appeared to be not unconnected with himself. But, he reasoned, there was nothing connected with himself that could cause her anxiety, unless it really was that matter of the number plates. He became conscious of an almost overwhelming desire to share her trouble whatever it might be, to let her understand that so far from willingly causing a shadow to fall across her path there were few things he would not do to give her pleasure; indeed, he began to long to take her in his arms, to comfort her. …
Presently a step in the hall announced Mr. Coburn's return. “In here, daddy,” his daughter called, and the steps approached the door.
Whether by accident or design it happened that Miss Coburn was seated directly opposite the door, while her two visitors were placed where they were screened by the door itself from the view of anyone entering. Hilliard, his eyes on the girl's face as her father came in, intercepted a glance of what seemed to be warning. His gaze swung round to the new-comer, and here again he noticed a start of surprise and anxiety as Mr. Coburn recognized his visitor. But in this case it was so quickly over that had he not been watching intently he would have missed it. However, slight though it was, it undoubtedly seemed to confirm the other indications which pointed to the existence of some secret in the life of these two, a secret shared apparently by the good-looking driver and connected in some way with the lorry number plates.
Mr. Coburn was very polite, suave and polished as an accomplished man of the world. But his manner was not really friendly; in fact, Hilliard seemed to sense a veiled hostility. A few deft questions put him in possession of the travelers ostensible plans, which he discussed with some interest.
“But,” he said to Hilliard, “I am afraid you are in error in coming up this River Lesque. The canal you want to get from here is the Midi, it enters the Mediterranean not far from Narbonne. But the connection from this side is from the Garonne. You should have gone up-stream to Langon, nearly forty miles above Bordeaux.”
“We had hoped to go from still farther south,” Hilliard answered. “We have penetrated a good many of the rivers, or rather I have, and we came up here to see the sand-dunes and forests of the Landes, which are new to me. A very desolate country, is it not?”
Mr. Coburn agreed, continuing courteously:
“I am glad at all events that your researches have brought you into our neighborhood. We do not come across many visitors here, and it is pleasant occasionally to speak one's own language to someone outside one's household. If you will put up with pot-luck I am sure we should both be glad—” he looked at his daughter”—if you would wait and take some dinner with us now. Tomorrow you could explore the woods, which are really worth seeing though monotonous, and if you are at all interested I should like to show you our little works. But I warn you the affair is my hobby, as well as my business for the time being, and I am apt to assume others have as great an interest in it as myself. You must not let me bore you.”
Hilliard, suspicious and critically observant, wondered if he had not interrupted a second rapid look between father and daughter. He could not be sure, but at all events the girl hastened to second her father's invitation.
“I hope you will wait for dinner,” she said. “As he says, we see so few people, and particularly so few English, that it would be doing us a kindness. I'm afraid that's not very complimentary”—she laughed brightly—“but it's at least true.”
They stayed and enjoyed themselves. Mr. Coburn proved himself an entertaining host, and his conversation, though satirical, was worth listening to. He and Hilliard talked, while Merriman, who was something of a musician, tried over songs with Miss Coburn. Had it not been for an uneasy feeling that they were to some extent playing the part of spies, the evening would have been a delight to the visitors.
Before they left for the launch it was arranged that they should stay over the following day, lunch with the Coburns, and go for a tramp through the forest in the afternoon. They took their leave with cordial expressions of good will.
“I say, Merriman,” Hilliard said eagerly as they strolled back through the wood, “did you notice how your sudden appearance upset them both? There can be no further doubt about it, there's something. What it may be I don't know, but there is something.”
“There's nothing wrong at all events,” Merriman asserted doggedly.
“Not wrong in the sense you mean, no,” Hilliard agreed quickly, “but