Falmy appeared at his window often during the day, looking wistfully up to the _calotte_, though Bertie, who could still observe him when standing back from the window, dared make no sign. It would matter nothing for the soldiers to see him at the opening--the prisoners were allowed the privilege of looking out if the windows were low enough to permit of their doing so--but the slightest communication that should be observed to pass between them would be visited with the most severe punishment, even to confinement in the dungeons beneath the ditch. He perceived, therefore, all the signs of distress on Falmy's face; he even observed him turn round, and saw his lips move as he gesticulated to his new companion within the room; he could guess, as plainly as though he had heard him, what the Genevese was saying. He felt sure that he was explaining that there must be a sentry above them, and that therefore Elphinston dared not signal across. "Oh!" exclaimed poor Bertie, "oh, if I had but acquainted them with my mother's address at once before the guard was set! that would have been enough. Fool! fool that I am to lose so fair a chance! The very visit of a man set free from this place to my mother's house would have alarmed her suspicions, would have told her all. And now, now, he knows not where to go. God help me! it was my only hope, and I have lost it." All day he watched the roof of the opposite tower, hoping against hope, for he _knew_ the guard would only be changed, and not removed. He watched still as the shadows of the winter evening deepened into night, and still also he watched until the night itself had come and both tower and sentry were obscured in darkness. And as he kept his dreary vigil all through the day, he saw Falmy's face at his own window, staring at him with sad and melancholy glances, but without any sign being made by him, so that he knew that a guard had been placed above the roof of his tower as well. "On any other day it would have mattered nothing," he moaned to himself. "Oh, why to-day of all days should these towers have been selected!" It was so absolute a chance, such a coincidence, that the guard should happen to have been placed at this part of the Bastille on this particular occasion that his misery and mental anxiety were not strange. Of all the days he had been in the _calotte_, there was scarce one that could have been worse for him and his prospects.