"Stay there until I make it possible for you to slip away!" he whispered sharply; then he stepped swiftly back a few paces and leaned against a wagon with the spanner in his hand.

He had scarcely done so when a man came out of the opening between the houses, and Alison felt her heart throb unpleasantly fast. If the newcomer should look around toward the stables it seemed impossible that he should fail to notice Thorne. The latter, however, stood quietly still, with his shoulders resting against the wagon wheel, and the spanner in full view in front of him. The other man drew abreast of them, but he did not look around, and Alison gasped with relief when he vanished behind one of the neighboring buildings.

Then she turned impulsively to her companion.

"Oh," she cried, "you meant him to see you!"

Thorne raised his hand in expostulation.

"Hadn't you better get the thing out before somebody else comes along?"

There was no doubt that he was right in this, and Alison attacked the nut again. In two or three more minutes she moved away from the buggy with the bolt in her hand.

"What had I better do with it?" she asked.

"I might suggest dropping it into a thick clump of grass. If you don't mind, we'll stroll out a little way on the prairie. There's too much dust to be pleasant blowing down the street."

They had left the wooden buildings some distance behind when Alison next spoke to him.