"Never mind," said Janet. "We'll see her to-morrow, most likely. Perhaps she's busy downstairs now."

"But isn't she the prettiest little thing!" mused Marcia, reminiscently. "The loveliest big blue eyes, and curly golden hair, and such a trusting look in her face, somehow! It went right down to the very bottom of my heart, if it doesn't sound silly to put it that way."

"Yes, I know," agreed Janet. "I felt the same way. But doesn't it strike you queer that—"

"Oh, the whole thing's queer!" interrupted Marcia. "The queerest I ever heard of. I guess you agree with me now, Janet, that I had a secret worth talking about in 'Benedict's Folly.' But let's wait till to-morrow and see what happens."

The morrow came and went, however, and nothing happened at all. Hour after hour the two girls watched for the signal of the white handkerchief, but every shuttered window of the old mansion remained blank. Neither did any one go in or out of the gate. Late in the afternoon Marcia played again at the window, but the sweetest music called forth not a single sign from behind the walls of the house next door. Janet had but one solution to offer.

"They probably didn't need any marketing done to-day, so she naturally didn't go out."

"But why couldn't she have at least looked out a moment from her window?" cried Marcia, disconsolately. "Surely that would have been easy to do, when she said she cared so much for the music. She must have known I was playing just for her!"

"She may have been somewhere in the house where she couldn't. You can't tell, and oughtn't to blame her without knowing," declared Janet, defending the conduct of the mysterious Cecily. "To-morrow we'll see her again, no doubt."

On the morrow her prophecy was fulfilled. They did see her again, but under circumstances so peculiar that they were quite dumfounded.

All the morning they watched and waited in vain for some signal from the upper window. But none came. And the main part of the afternoon passed in precisely the same way. They sat very conspicuously in their own window-seat, so that there could be no doubt in Cecily's mind about their being at home. Marcia even did a little violin practice while they waited. And still there was no sign. Suddenly, about five o'clock, Janet clutched at her chum's arm.