“It might be worse,” was the comforting response. “We are good so long as the bag holds, but the wind is growing stronger and no telling what may turn up. Keep cool. I’ll get you out of it, wind or no wind.”

A blast that threatened to rend the bag struck them, and the balloon lay down on its side. It was up with a bound, then down again, until Grace Harlowe could not decide for a certainty whether she was standing on her head or on her feet. As a matter of fact she was practically doing both.

Then suddenly peace, delicious peace and quiet, settled over the troubled ship. It righted, the wind stopped blowing and the balloon floated gently on an even keel.

“Oh, isn’t this fine!” cried Grace happily.

“Rotten fine, thank you, as the Englishman would say. Know what’s happened?”

“No, sir, but whatever it is I feel greatly relieved to know that the wind has died down as suddenly as it broke loose.”

“My dear woman, something other than the wind has broken loose. The wind is blowing just as hard as before, but we do not feel it because we are going with it. We’re adrift!”

“Meaning?”

“That the balloon has snapped its cable and is now traveling toward the Rhine at a high rate of speed. From present indications I should say that you and I will arrive there considerably in advance of the Third American Army.” Trying to appear undisturbed, though he was more troubled than he cared to admit to his passenger, Major Colt possessed a pretty clear idea of what was before them.