His appearance in the courtyard at this moment was surprising, but in all probability he wished to issue a direct order concerning the plan of retreat.

Yet the officer did not at once move forward to where groups of soldiers were also making preparations to be on the march. Instead he stood for a few moments just outside the door, gazing searchingly about him.

No one of the Red Cross girls spoke. They were too awed by the gravity of the situation to make trivial remarks. Moreover, the big Russian officer was an impressive figure. It was more interesting to watch him until they were summoned to take their places in the wagons that were now leaving the fortress at intervals of about ten minutes apart.

By chance Mildred Thornton made a movement and immediately the Russian colonel directed his glance toward her. He stared at her for a moment in silence and then, stepping forward, touched her upon the arm.

“I should like to speak to you a moment alone, nurse,” he announced in low tones, although Barbara and Nona both heard this part of his speech.

Instantly Mildred complied, and the girl and man moved a few feet away, where they could talk without being overheard.

Under the circumstances neither Barbara nor Nona had the temerity to follow them. But this did not mean that they were not both extraordinarily curious. At least they strained their ears as much as possible in order to try and catch a stray word spoken either by Mildred or her companion. But they heard nothing except the low murmur of the two voices, the officer asking questions and Mildred making replies.

“What on earth do you suppose he can be saying to Mill?” Barbara finally whispered.

Nona only shook her head. Any guessing would be a pure waste of energy, since Mildred would return in a few moments to explain.

She did come back almost immediately, but with her first words her friends realized that something unusual had occurred. Ordinarily Mildred was calm and self possessed. Now her voice shook and indeed she seemed to be shivering either from cold or excitement.