I know she did it.

She just had to be nice in spite of herself," concluded Grace.
"But why do you think it was Elfreda ?" persisted Miriam.
"It was what you said that put me on the right track," replied Grace.

"I believe she made up her mind that day to send Ruth the suit and hat." "If she did send them, there is still hope that she will come back to us," said Anne.
It was agreed among the three girls that not even Ruth should be told of their suspicions, and that if any possible opportunity arose to conciliate Elfreda it should be promptly seized.
During the short space of time that elapsed before the dreaded examination week swooped down upon them, the three friends were too busy preparing for the coming ordeal to give much thought to the discovery they had made.

Elfreda avoided them so persistently that there seemed small chance of getting within speaking distance.

It was a week of painful suspense, broken only by brief outbursts of jubilation when some particularly formidable examination, that everyone had worried over, seemingly to the point of gray hairs, turned out better than had been expected.
In the campus houses wholesale permission to burn midnight oil had been granted.