"It is excellent, dear, quite excellent," she cried.

"I think so, Baker" Miss Edge answered, in an exalted mood again.

"What a good notion of yours, Mabel, to ask the Rocks," Baker, full of enthusiasm, gaily cried above the music. "It will give those two so much pleasure later, when they get home," she added.

"I did no such thing," her colleague said, but did not seem to pay attention.

"The old man really cuts quite a distinguished figure," Baker insisted, to all appearances not having taken in Edge's negligent reply, perhaps because of this great spring tide of music.

"Nevertheless," Edge enquired, "what was it led you to ask them, Hermione?"

"I?" Miss Baker demanded. "I never invited anyone, dear."

Edge leaned over her colleague in one swift movement, as though to peer up Baker's nostrils.

"Then you mean they are here unasked?" she hissed. "Oh no, Hermione, not that, for it would be too much."

"I didn't," Baker promised. They looked wildly at one another. "Now careful, Mabel," she went on. "We don't wish to make ourselves conspicuous."

"But this is preposterous persecution. It could even be wicked."

"Mabel don't, I beg of you. Just when we were so enjoying ourselves. If you could only catch sight of your expression, dear. We shall have everyone look our way in a minute."

"Hermione, they shall leave at once," Miss Edge proposed.

"To brazen themselves like this," Baker hastily agreed. "Why, it's wrong."

In time, however, both ladies gained sufficient control to be able to look straight out over the Hall with a glare above the dancers. But when Elizabeth came by once more, still in Sebastian's arms, hair still disarranged, still dancing as though glued to him, they both deflected their vision through the degrees necessary to take in this orgiastic behaviour, which they had not previously bothered to notice. They then followed the couple with palsied indignation, rooted to valse trembling chairs.

"You saw?" Miss Edge brought out at last.

"Yes, and alas I still do, Mabel."

"Well, whatever else we may decide, dear, their little display of animalism must be stopped at once."

"Whatever you think," Miss Baker agreed. But seemed hesitant.

"Yes, Hermione, and why on earth not?"

"Is it always wise to bring matters of this kind out in the open? The thought just flashed through my mind, that's all."

"Hermione, I wish I could follow your reasoning."

"It's just I can't quite make out that any of the children appear to have caught on, particularly. You see?" Miss Baker asked.

"Should we wait for the girls to copy this themselves?"

"It does seem a most ambiguous style to dance, I must admit, Mabel."

"In a moment, when the first flush of this glorious music has worn off, I'm very much afraid the cat will be out of the bag, Hermione."

"Where has Mr Rock got to, then? I don't see him," Miss Baker said, to draw a red herring across the trail. She was a cautious woman.

"Oh drinking, undoubtedly drinking outside," Miss Edge proclaimed.

"But there's no more than lemonade, dear."

"He had a flask, Hermione. I saw the bulge myself, in his pocket."

"You appal me."

"Ah, if it were only that."

"Oh surely, Mabel?"

"I insist he is far too close to some of the girls."

"Be that as it may," Miss Baker sternly said, pulling herself together, "I do beg you to take this fresh affront in a Christian spirit."

"Why should I?" her colleague demanded. "When he flaunts our authority?"

"You know how deaf Mr Rock is. Perhaps he misheard some time this week. Thought you had invited him?"

"Oh no, no, that simply will not wash. You must realise all he misunderstands is just what he does not wish to hear. Besides I have not said two words to the man in months."

"Of course there may have been. . but I don't think. . wait, I'm trying to remember," Miss Baker said. "He might have thought, when I mentioned, when we met by the Lake," she delicately hinted, to scale down Mr Rock's offence. "But of course I'm in no two minds. A member of the staff has no business whatever dancing with the misguided woman. If we don't pull together on occasions of this sort, what good are we, after all? And to go about it in that disgraceful way is too bad of Sebastian. As to her, I cannot believe she can be responsible for her actions. Oh no, don't think I don't agree with you, dear."

"Then, Hermione, I am going straight onto the floor. I shall simply tap him on the shoulder, gesture him Off. I shall not say a word," Miss Edge announced, and made as though to get down from her chair.

"But Mabel, is this wise?" Miss Baker asked, in a sort of shriek to pierce the double basses which, at the moment, held the recorded melody.

"There is more to our duties than a kind of still-born native caution," Edge complained, but stayed seated.

"Yes, dear," her colleague comforted, satisfied that she had, at least, held off immediate action.

"If we see another woman ridiculed before our very eyes, are we to sit by without a word?" Miss Edge demanded. "There is a double obligation on us, surely. To call Elizabeth Rock to order, for she is leading him along to make a fool of her, to compromise herself with him, Baker; and, second, to show our girls we shall not turn a blind eye upon wrongdoing, which this disgraceful behaviour most surely is."

"You are right, Mabel, of course. But how will Mr Rock react?"

"He should be eternally grateful. You cannot tell me he wants his girl compromised with Sebastian Birt."

"No, Mabel. But you know the way he is. He might take our reproof for an affront."

"And if he did?"

"My dear, he is such friends with Mr Swaythling. This can hardly be a moment to invite publicity, the attention of the Supervisor, just when we are face to face with the enigma of Mary, not to mention Merode."

"Yes, but there must be some justice in our affairs, Baker. If we are to harbour the informer in our midst, let us have nothing to hide, at least."

"Leave sleeping dogs lie, Edge."

"And what have we done? My conscience is clear. Can you point to any single circumstance under which we could possibly be said to have countenanced the girl's disappearance?"

"Of course, this whole thing's absurd," her colleague answered. "At the same time, I didn't quite care for Mrs Manley's attitude. After she had seen Merode she rather made capital out of Mary's being such a favourite of ours."

"I trust, whenever we make friends with one of the Students, that will not be considered sufficient justification for the child concerned to make off at dead of night, and in her pyjamas." Miss Baker laughed elegantly at this sally.

Just then Sebastian bumped Elizabeth, through carelessness, into another couple and she opened hers to find herself gazing into the Principals' four eyes.

"Look out Seb," she said. "They're glaring like a couple of old black herons down in the meadow, over the daisies."

After this, they danced with more circumspection.

"It is a matter of elementary justice, Baker," Edge insisted, but in so much calmer a voice, now Elizabeth was no longer dancing cheek to cheek, that her colleague could be satisfied the danger of an open breach was past. "If one sees wrong done, one cannot sit idly by, dear."