"Don't worry," laughed Herr Block. "I haven't far to go. If you'll look to the right there you will see the lights of a little town. I shall be able to get a conveyance there for my homeward journey. I brought you this way because it will save time and trouble."
He stepped from the car, then reached back and extended a hand to Hal, who had taken his place at the wheel.
"I'm awfully glad to have met you," he said quietly, "and I am glad to have been of assistance to you. I trust that we shall see more of each other at some future time."
"Thanks," said Hal, gripping the other's hands. "If it hadn't been for you our mission would have failed. We shall never forget it."
Herr Block shook hands with the others, and then disappeared in the darkness.
"A fine fellow," said Hal, as he sent the car forward.
"You bet," Chester agreed. "I hope we shall see him again."
Stubbs and McKenzie also had words of praise for the assistance given them by Herr Block.
Dawn had streaked the eastern sky when the four friends made out the distant British lines. Chester gave a cheer, which was echoed by the others.
"At the journey's end," said Hal quietly.