Bullets still whizzed around the plane, and one glanced off its polished side, but John's first nervous jerkiness in handling the machine had probably saved him. The target had been so high in air, and of such a shifting nature that the Uhlans had little chance to hit it.

He was now beyond the range of any rifle, and he drew a long breath of relief that was like a deep sigh. Then he took a single downward glance, and caught a fleeting glimpse of the Uhlans galloping away. Doubtless they were making all speed back to their own army.

He flew on for a minute or two, searching the horizon eagerly, and at last, he saw a tall hill, a low hill and a flash of water between. He felt so much joy that he uttered a cry, and an echo of it came from a point almost by his side.

"Did I hear firing, John?"

It was Lannes' voice, feeble, but showing all the signs of returning strength, and again John uttered a joyous shout.

"You did," he replied. "It was Uhlans in a grove. I was flying low and their bullets whistled around us. But the Arrow has taken no harm. I see, too, the hills and the stream which are our landmarks. We're about to arrive, Philip, with our message, but there's been treachery somewhere. I wish I knew who was in that French plane."

"So do I, John. It certainly came out of Paris. In my opinion it meant to destroy us and keep our message from reaching the one for whom it was intended. Who could it have been and how could he have known!"

"Feeling better now, aren't you, Phil?"

"A lot better. My head aches tremendously, but the dimness has gone from before my eyes, and I'm able to think, in a poor and feeble way, perhaps, but I'm not exactly a dumb animal. Where are the hills?"

John pointed.