The next morning Cassandra Weldon was much surprised, on arriving at the school, to receive a message asking her to step into Miss Ravenscroft's special sanctum. She went there at once, wondering if the head-mistress wanted to give her particular instructions with regard to the great scholarship examination which would take place at the end of the term. Cassandra was remarkable for her calm and somewhat stately bearing; she was the sort of girl who never gave herself away. She was admired rather than passionately loved by her companions. No one could help giving her a most sincere respect. But one or two adored her, and amongst these was Florence Archer, a handsome, bright-faced, original sort of girl who was in the same form as Cassandra.

"Be sure you come and tell me afterwards what it all means, Cassie," said Florence, touching her friend affectionately on the shoulder.

Cassandra nodded. She did not suppose the matter was of special import. The rest of the girls proceeded to their different classes, and Cassandra found herself in Miss Ravenscroft's presence. Now to Kathleen the fact of being interviewed by Miss Ravenscroft only caused a sense of annoyance, and unwonted irritation; Ruth was surprised, partly delighted and partly afraid; but Cassandra, whose father had been a teacher, and who lived all her life in the scholastic world, considered it an honor almost too great for words that she should be specially interviewed by so great a person as Miss Ravenscroft. She made, therefore, a most respectful curtsy, and stood modestly before the head-mistress.

"Sit down, dear," said Miss Ravenscroft kindly. "I have sent for you, Cassandra, neither to reprove nor to give you ordinary counsel. I have sent for you to consult you, my dear child."

"You are very good," said Cassandra, flushing all over her delicate face; "and I am sure," she added, "if it is possible for me to help one like you, I should be only too proud."

"That is what I feel; and I think you can help me. We are at present in a very unpleasant position in the school. The unanimity and harmony of this entire large place is in danger, and the foundationers are in extreme peril. You perhaps know to what I allude."

"I could not be in the school without having heard rumors of a sort of insurrection which seems to be spreading a good deal," said Cassandra.

"Of course," said Miss Ravenscroft. "It has been brought to our ears that a society has been formed by an Irish girl of the name of Kathleen O'Hara. She has called it the Wild Irish Girls. There are several members, and she herself is the leader. Now, Cassandra, without going into particulars, it is the firm intention, not only of myself as head-mistress, but also of the governors, to crush this matter in the bud. It is true that the bud is rapidly blossoming into most dangerous flower and fruit, but if we are in time we shall stop all further mischief. Now to do this we must get all particulars. There is one girl who can furnish us will all we want to know, but she dreads, doubtless from conscientious motives, to betray her late companions. I allude to Ruth Craven."

"Poor little Ruth!" said Cassandra. "I thought as much. The child is very unhappy. I take a great—- very great—interest in Ruth, Miss Ravenscroft. She is a most sweet girl; she is a lady placed in a position which a lady should scarcely occupy, but through it all she will never betray the true instincts of her nature."

"I am sure of that. I quite like the child myself," said Miss Ravenscroft; "and your opinion of her, Cassie, confirms my own. She told me, too, that you have been extremely kind to her. I quite expect that is the case. But, my dear, the time has come when Ruth will either have to tell us what she knows or to resign her place in the school."

Cassandra's face looked troubled.

"There are no two opinions on the matter," continued Miss Ravenscroft. "Yesterday a meeting of the governors was convened. They assembled in the committee-room, and I was present. Ruth was sent for and questioned by Miss Mackenzie, our chairwoman. She was asked certain questions, which she absolutely refused to answer. The only thing we could get out of her was that she had been a member of the society but was one no longer."

"She left them because of me," said Cassandra. "She felt she could not be with me and with those who do not approve of the paying girls."

"There you are!" said Miss Ravenscroft. "Think of the monstrous mischief that is going on in our midst. Children like the foundationers, who are received at the school without being expected to pay anything, who get the most admirable education free of all cost, daring to set up their opinion against girls who, without being in any sense their superiors—one doesn't want to imply that for an instant—are yet vastly superior in numbers. The thing must be put a stop to, and with a high hand; and to show you, my dear, what we mean to do, we have presented an ultimatum to Ruth Craven. She will either tell publicly what she knows of the Wild Irish Girls or be publicly expelled."

"Oh, poor Ruth!" said Cassandra.

"We are naturally most anxious that such a painful scene should not take place," said Miss Ravenscroft. "I beg of you, therefore, Cassie, to see her and use your influence to induce her, not from quixotic motives, to ruin herself and injure the other girls of the school."

"I will do what I can. But Ruth is peculiar. She is, with all her sweetness, very obstinate. Still, I faithfully promise to do what I can."

Cassandra left the presence of Miss Ravenscroft and returned to her place in class. Nothing would induce her not to work with her usual diligence, but when on certain occasions she raised her head she saw that Florence Archer was watching her with curiosity and affection, and that Ruth darted quick glances at her and then bent her head, with its curly hair falling over her face, to resume her lessons.

This was a half-holiday, and the classes broke up at twelve o'clock. Cassandra hoped to have a talk with Ruth before she went home, but when she looked round for her little favorite she could not find her anywhere. The foundationers were standing in knots talking eagerly to each other. There was a sort of buzz or whisper going on in their midst. Kathleen O'Hara darted from one group to another, smiled at one set of girls, patted the shoulder of a favorite girl in another group, laughed one time, said an emphatic word to another, and presently disappeared, accompanied by Susy Hopkins.

Alice Tennant was standing by herself; she looked dull and depressed. Cassandra went up to her.

"It there anything the matter, Alice?" she asked.

"Matter!" replied Alice. "Surely you must know that for yourself. Have you not heard what a condition the school is in?"

"I have, of course, heard about the Wild Irish Girls," said Cassandra, lowering her voice. "But surely the fact that there are a few naughty girls in our midst need not upset the whole school?"

"It upsets me, anyhow," said Alice, "for I feel that I have brought it on the school. I could cry. I only wish that mother had never been induced to take Kathleen as a boarder. She is worse than troublesome; she is a girl without principle."

"Oh, I don't think quite so bad as that, dear," said a gay voice at that moment; and turning, Alice saw the piquant and beautiful face of the girl she loathed. "I guessed, of course, that you must be alluding to me," said Kathleen. "I am bad, but I have my own principles—and a good old-fashioned set, worth a great deal."

She nodded impertinently to both the girls, and then reentered the school.

"I left my satchel and came back for it," she said as she vanished from their view.

"Yes," said Alice, "that is just like her—just the sort of thing she would do. She is always daring every one. I do wish some strong influence could be brought to bear on her. There is no doubt she is very clever, and when she likes she can be extremely agreeable."

"She is extremely pretty, you know, and that goes a long way."

"Not with me, thank goodness!" said Alice. "In fact, I almost hate her face. I detest people who are always grinning and smiling and showing themselves off. My opinion is that schoolgirls ought to be modest, and attentive to their books, and not thinking of giving themselves airs. But there! no one agrees with me. Mother and the boys are fairly mad on Kathleen; and as to the servants, there's nothing they wouldn't do for her. Every one combines to spoil her; I don't see that she has the least chance."

Cassandra talked a little longer to Alice, and then prepared to go home. She was disappointed that she had not seen Ruth; but Ruth had promised to be with her quite early in the afternoon. They were both to work for two hours, and afterwards their coach was to arrive. Ruth would spend the entire afternoon at Cassandra's home. On her way back Florence Archer suddenly joined her.

"Now, Cassie," she said, "what is it?"

"Oh, can't you guess for yourself, Flo? It is this. The school has got into trouble, and the governors and Miss Ravenscroft mean to sift the matter to the very bottom. It is pretty bad when all things are considered, for if the girls won't tell they will be expelled—expelled without any hope of returning. And I rather fancy Kathleen is the sort of girl whom no one will betray. It is extremely awkward, and I feel very miserable about it."

"You look it; and yet it isn't your affair. Your place in the school is secure enough."

"What does that matter, Flo, when those you love are in danger?"

"Those you love in danger, Cassie! What do you mean now?"

"I mean just what I say. I am decidedly fond of little Ruth Craven. She is placed in a hard position, but she is so clever and so pretty that she could do anything. Well, I am certain that Ruth won't betray her companions."

"I forgot," said Flo............