As the doctor had prophesied, both Dulcie and Gerda developed the rash on the following day. Fortunately, all three girls had the complaint very slightly, and beyond a touch of sore throat and sneezing were not troubled with any very disagreeable symptoms.

"The microbes have only fought a half-hearted battle, and they are retiring worsted," declared Miss Birks; "they're not as savage as scarlet-fever germs."

"Quite tame ones," laughed Dulcie.

"Germs 'made in Germany' aren't likely to be A1," said Deirdre, with a quip at Gerda.

After a day or two in bed, Dr. Jones pronounced his patients convalescent, gave them permission to go downstairs, and held out the promise of a walk on the warren if they continued to improve. Their period of isolation was a fortnight, after which they were to be allowed to go home for the remaining week of the holidays. If it had not been for the thought of what they were missing, they might have congratulated themselves on having an extremely good time. Miss Birks was kindness itself, and allowed every indulgence possible. They were kept well supplied with books, in cheap editions which could be burnt afterwards, and had licence to pursue any hobby which admitted of disinfection. Dr. Jones brought good reports of the Hargreaves children, who were now convalescent. Ronnie had most fortunately not caught any germs, and was away with Mrs. Trevellyan in Herefordshire. Of the seventeen girls who had returned home, Irene Jordan only had developed a slight rash, so that on the whole the school had escaped better than might have been expected.

After the constant society of their class-mates, the three invalids felt the Dower House to be very large and empty and lonely. It was astonishing how different it seemed now the rooms were untenanted. The whole place wore a changed aspect. In ordinary circumstances they hardly ever gave a thought to the ancient associations of the house, but now they constantly remembered that it had been occupied as a convent, and that hundreds of years ago gentle grey-robed figures had flitted up and down those identical stairs and paced those very same passages. It was the code of the school to laugh at superstition, and none of the girls would confess to a dislike to go upstairs alone, but it was remarkable what excuses they found for keeping each other company.

Gerda was the worst off in this respect, for Deirdre and Dulcie, though ready to accommodate each other, did not show her too much consideration, and would often ruthlessly disregard her palpable hints. They kept very much together, and though not openly rude, made her feel most decidedly that she was de trop. She never complained, nor offered the least reproach; her manner throughout was exactly the same as it had been since her first arrival, gentle, reserved, and uncommunicative. Sometimes the chums, out of sheer naughtiness, tried to pick a quarrel with her, but she never lost her self-control, and either kept entire silence, or replied so quietly to their gibes that they were rather ashamed of themselves. To Miss Birks Gerda did not open her heart any more than to her room-mates. She appeared grateful for kindness, but the Principal's best efforts could not make her talk, and on the topic of her home and her relations she was dumb. To any questions she would return the most brief and unwilling answers, and seemed reluctant to have the subject mentioned at all. After several vain attempts to win her confidence, Miss Birks gave up trying, and allowed her to go on in her usual self-contained silent fashion—a negative policy not wholly satisfactory.

All three girls made excellent progress, and Dr. Jones very soon gave permission first for a gentle walk round the garden at midday, then for a longer time out-of-doors.

"We've been making invalids of them, though they're not invalids at all," he said jokingly. "They're nothing but three humbugs! Look at their rosy cheeks! And I hear reports of such excessive consumption of chicken broth, and jelly, and other delicacies, I shall have to diet them on porridge and potatoes. I think Miss Birks is too good to you, young ladies. When I was at school I wasn't pampered like this, I assure you, whatever infectious complaints I managed to catch. They used to dose us with Turkey rhubarb, no matter what our ailment; it was a kind of specific against all diseases, and nasty enough to frighten any microbe away."

"May we go home next week?" pleaded Deirdre.