He evidently wasn’t aware that Grace had seen Trenton and Irene carefully kept the talk in safe channels. He had brought his roadster, not knowing that he was to find Grace at Minnie’s, but he insisted that the car carried three comfortably and he wouldn’t consider leaving her behind.

It was the same car in which Trenton had driven her into town after the night they spent together at The Shack. In spite of her attempts to forget, thoughts of him filled her mind like an implacable host of soldiery....

After a plunge into the country they swung back to town along the river.

“By Jove!” exclaimed Kemp suddenly. “There’s my little factory over there in the moonlight. Have you ever seen it, Grace? We’ll just dash in for a minute.”

“I wonder if father’s still there?” said Grace as they drove into the lighted yard.

“We’ll soon find out. That’s his workshop yonder where you see the bluish lights. I see O’Reilly’s light on in the main office. That fellow works too hard.”

“It’s a good thing somebody works around this place,” said Irene. “The world knows you don’t.”

“Oh, it’s not as bad as that,” Kemp retorted, and led the way down a long aisle of one of the steel and glass units of the big plant. The moon diffused its mild radiance through the glass roof, as though mocking with a superior mystery the silent inert machinery.

The sound of voices became audible in a room partitioned off in one corner. The door was ajar and two men in overalls and jumpers were pondering a motor set up on a testing block.

The trio remained outside, watching the two intent, rapt figures. One Grace had recognized as her father; the other, she realized bewilderedly, was Ward Trenton. Trenton, unconscious that he was watched, raised his hand and Durland turned a switch. The hum of a motor filled the room; and Durland turned slowly from the motor to glance at Trenton. Trenton signalled to shut off the power and dropped upon his knees, peering into the machine. Durland took up a sheet of paper and from it answered the questions which Trenton shot at him in rapid succession.