Elsie allowed her hand to be held. But she cried, softly, but still in a carrying voice, “No, no, no. Don’t look out! Don’t wake up. There are two of us here. Two. Not one!”

And then the girls stood silent. The game had become so real that Kate would not have been at all astonished to see fairy lights at the windows, to hear windows opening and fairy laughter. But she heard nothing except the crickets in the uncut grass and Elsie’s hurried breathing.

“Come,” she whispered. “Let’s go all around the house”—and off she started, still holding Elsie’s hand. Elsie could only go, too. And at the back of the house, the side that was in view only of the orchard and vacant fields beyond, Kate noticed two windows wide open in the second story.

“Does Aunt Katherine let those windows stay open like that?” she asked, curiously. “Those are the windows in the study. I know from Mother’s telling. Suppose it should rain to-night? It must be an oversight. Let’s go back and get the key from Aunt Katherine now to-night and close them for her. Won’t it be fun to go in by starlight, just we two alone!”

Elsie shook her head violently and pulled her hand away at the same time. There was a break in her voice almost as though she were in danger of bursting into tears.

“You needn’t go being a busybody the very first hour you are here,” she exclaimed. “I guess Aunt doesn’t need your advice about such things. Come away. Come out of the orchard.”

Kate followed her, nonplussed, at sea. “What is the matter?” she demanded. “What are you afraid of, Elsie Frazier?” Then, stopping suddenly, “What was that? Listen!” Surely a door had closed softly up there in the room with the windows open!

“What was what?”

“Didn’t you hear?”

“No, of course I didn’t hear anything.”