White and Black Lies by Madeline Leslie

NOT a word was said on the subject of the previous evening until the lessons for the morning had been recited; and then Miss Salsbury called upon the young ladies to resume their seats at their desks.

"I wish to make some remarks," she began, "on a subject of vital importance to every one of you; that is, the habit, too prevalent at the present day, of falsifying the word. But first I will relieve your curiosity concerning Clara by informing you that, early in the morning, she was overheard planning an excursion which she was well aware was contrary to the rules of the school. With premeditated deceit and cunning, painful to think of in one of her years, she carried these plans into execution, slipped away from the companion she had induced to join her in a walk, and ran for half a mile to meet a child with whom I had forbidden her to associate.