"I am going to put on two fresh front tyres," said his driver. "But I shall be ready in half an hour, and if you are going back we have still two hours of daylight left."

Dennis nodded, and stepped forward, saluting as the two generals turned towards him, and a genial smile widened Father Joffre's good-humoured visage.

"At your service, monsieur," he said, unable to distinguish the officer's rank for the white chalk dust that hid his solitary star.

"I have come straight from Sir Douglas Haig, mon Général," said Dennis, presenting his dispatches, which General Joffre instantly opened and perused intently.

"There are matters here," he said to his companion, "which will require some consideration. You are the Lieutenant Dashwood whom Sir Douglas mentions?" And he turned to Dennis: "I am going forward now, but I shall be back in this place at eight o'clock to-morrow morning. Our officers here will amuse you, mon lieutenant, in the meantime, and find you a bed. I am greatly indebted to you for the rapidity with which you have carried this most important document." And he walked quickly to the powerful car which was waiting by the side of the road. He was gone in a moment in a whirl of dust, the dispatch still in his hand, and the young Frenchman followed the general's automobile with an envious look in his eyes.

"That is a beauty," he said. "One could get seventy or eighty miles an hour out of her. But here comes an interesting personality, monsieur. This man who is approaching is Claude Laval, one of our most famous aviators, who has brought down sixteen German machines already, and killed fifteen enemy pilots. Something has vexed him too. He looks like a bear with a sore ear."

A tall man approached, clad in leather flying costume, with a close-fitting helmet on his head, and his thin, good-looking face bore an expression of extreme annoyance.

"Ah, Martique, my friend, is that you?" he said, nodding curtly to the chauffeur. "It is easy to see you have come from the other end of everywhere. I suppose it is not possible that you have any news of my brother?"

"If monsieur's brother is the Capitaine Felix Laval, officier de liaison, with the —th Division, I can give you some news of him," said Dennis, who had been struck by the strong resemblance between the aviator and the man who had saved his own life.

"It is the same," said the aviator, all trace of ill-humour vanishing as they shook hands. "Well, well," he continued after Dennis had told him of his adventure and how he came to be acquainted with his brother. "Yon will dine with me, and, ma foi, I want a good comrade to put me in a better temper."