"It's the smell of Master Taunton's seegair in your ears," said Tam. "For the past five minutes A've been listenin' to the gay music of their tractors, bummin' like the mill hooter on a foggy morn—there they are!"

High in the dark heavens a tiny speck of red light glowed, lingered a moment and vanished. Then another, then a green that faded to white.

"Thank the Lord!" breathed Blackie. "Light up!"

"There's time," said Tam, "yon 'buses are fifteen thoosand up."

They came roaring and stuttering to earth, five monstrous shapes, and passed to the hands of their mechanics.

"Tam heard you," said Blackie to the young leader, stripping his gloves thoughtfully by the side of his machine. "Who had the engine trouble?"

"Gordon," chuckled the youth. "That 'bus is a—"

"Hec, sir!" said Tam and put his hands to his ears.

They had walked across to the commander's office.

"Well—what luck had you?" asked Blackie.