What helped change the girls’ opinion of Amy, too, was the fact that Mrs. Tellingham announced in chapel one morning that Mr. Gregg had sent his check for five hundred dollars toward the rebuilding of the dormitory, the walls of which now were completed, and the roof on.

She spoke, too, of the reason Amy had left her candle burning in her lonely room in the old West Dormitory that fatal evening.  “We failed in our duty, both as teachers and fellow-pupils,” Mrs. Tellingham said.  “I hope that no other girl who enters Briarwood Hall will ever be neglected and left alone as Amy Gregg was, no matter what the new comer’s disposition or attitude toward us may be.”

To hear the principal take herself to task for lack of foresight and kindness to a new pupil, made a deep impression upon the school at large, and when Amy Gregg appeared on the campus again she was welcomed with gentleness by the other girls.  Although Amy Gregg still doubted and shrank from them for some time, before the end of the term she had her chums, and was one of a set whose bright, particular star was her one-time enemy, Mary Pease.

Meanwhile, the older girls—­the seniors who were to graduate—­had a new problem.  The films for “The Heart of a Schoolgirl” were reported almost ready.  Mr. Hammond was to release them as soon as he could, in order to bring all the aid to the dormitory fund possible before the end of the semester.

Now the query was, “How is the picture to be advertised?” Merely the ordinary billing in front of the picture playhouses and on the display boards, was not enough.  An interest must be stirred of a deeper and broader nature than that which such a casual manner of advertising could be expected to engender.

“How’ll we do it?” demanded Jennie, with as much solemnity as it was possible for her rosy, round face to express.  “We should invent some catch-phrase to introduce the great film—­something as effective as ’Good evening! have you used Higgin’s Toothpaste?’ or, ’You-must-have-a pound-cake.’  You know, something catchy that will stick in people’s minds.”

“It has taken years and years to make some of those catchy trademarks universal,” objected Ruth, seriously.  “Our advertising must be done in a hurry.”

“Well, we’ve got to put our best foot forward, somehow,” declared Helen.  “Everybody must be made to know that the Briarwood girls have a show of their own—­a five-reel film that is a corker——­”

“Hear! hear!” cried Belle.  “Wait till the censor gets hold of that word.”

“Quite right,” agreed Ruth.  “Let us be lady-like, though the heavens fall!”

“And still be natural?” chuckled Jennie.  “Impossible!”

“Her best foot forward—­one’s best foot forward.”  Mary Cox kept repeating Helen’s remark while the other girls chattered.  Mary had a talent for drawing.  “Say!” she suddenly exclaimed.  “I could make a dandy poster with that for a text.”