significant glance toward the lowering sky. For answer, Mollie threw in
the clutch and the machine purred evenly. Then, with a little impulsive
gesture, she turned to the sergeant.

"It's--it's a long way to Camp Liberty," she said, with pretty hesitation.
"Won't you let us show you how grateful we are by letting us take you
there?"

"Please do," urged Betty.

He considered a moment, then with another of his grave smiles saluted once
more and turned to the boys who stood waiting in the road.

"Pile in, fellows!" he said. "We'll just about make it before the storm."

Then, while the boys obeyed, scrambling in any way, and Betty and Grace
squeezed themselves into the front seat, Sergeant Mullins leaned over and
said, very quietly:

"Thank you."




CHAPTER XIV

THE REINS TIGHTEN


"A week!" sighed Betty. "Oh, Mollie dear, a week's such a very little