Then on the morning of the seventh day, at dawn, Mildred Thornton, who chanced to be gazing out of a small window which overlooked the courtyard of the fort, made a discovery.
She had not been asleep all night, as there was so much work to be done, but on the way to her room had stopped for a single breath of fresh air, after the fever and confusion of the hospital.
What she saw were enormous cannon being lifted on low motor trucks and these trucks being driven as swiftly as possible outside the Grovno gate and along the Russian highway. There were a few soldiers accompanying them.
Almost with the flash of an intuition the idea came to Mildred: General Alexis was contemplating a retreat. He must have decided that, alone and with only a limited number of regiments at his command, he would be unable to hold out against the enemy for an unlimited time. Therefore it might be wiser to draw them further into Russia and away from their own supplies. General Alexis could join Grand Duke Nicholas beyond the Styr River and there be better prepared to meet the invaders. Mildred knew that the country on the other side of the river covered miles of swamps. If the bridges over the river were destroyed, the Germans would find great difficulty in pursuit.
Therefore the cannon and other heavy guns, with whatever munitions could be spared, were first to be taken to places of safety. Later on General Alexis would probably give orders for a more general retreat. But when Grovno fell the Germans would find none of the spoils of war left behind for the victors.
All this Mildred thought out slowly and carefully as she stood for a few moments beside the tiny window. Then she went into her room, changed her uniform for a fresher one and returned to her work. Not a word of her idea did she breathe to any one. She had no foundation for her impression, and at first it was an impression, nothing more. Yet Barbara or Nona might have been frightened by the suggestion.
However, as the dawn passed and the hours of the day followed, other persons beside Mildred Thornton began dimly to appreciate the possible conditions. More and more of the munitions of war were hauled away, and surely this did not look as if the fight were to be persisted in at Grovno.
Finally, just before twilight the order came that the wounded, with their nurses and surgeons, were to be moved at nightfall. Whatever preparations were necessary must be made at once.
Silently small groups of soldiers were already being marched away.
Oh, of course the old guns of the famous fortress continued to belch forth destruction, and there was no lessening of the front ranks of soldiers, who were directly attacking the enemy. General Alexis was merely drawing off the men whom he did not actually need for defense. Grovno could be protected by a comparatively small number of soldiers without the enemy appreciating any depreciation in their numbers. For all the firing was done behind a barricade of walls. So far the Germans were about a mile away. There would be no hand-to-hand combats until the fortress was finally demolished.