There stood at one angle of the fortress an ancient tower of immense height, which, for many miles, overlooked the surrounding country. By a winding staircase the top of the building could be gained; the roof was fiat, and encircled by a parapet not quite breast-high; and, as the view from the summit was varied and extensive, prisoners, who would go through the labour of ascending seven flights of granite stairs, amused a portion of monotonous captivity by gazing in listless idleness on scenes of busy life, which, to their state of thrall, presented a sad and sickening contrast. This tower was a favourite retreat of Captain Aylmer—and over the parapet of the roof he would lean alone for hours, muttering gloomily to himself, or communing with sad thoughts in silence.

Often, when Claudine was in my arms, I observed, that in passing us, the expression of Aylmer’s eyes was absolutely malignant; and I marvelled that a face so innocently beautiful as that of the child of the commandant, did not, like David’s harp, exert a gentle influence, and speak peace to the dark spirit of the captive. It was strange also, that, by some curious impulse, Claudine involuntarily recoiled from this melancholy man, and that while he continued in sight, she would cling closely to my bosom as if there she was seeking for protection.

It was the evening of a sultry day, and the hour was come when, by prison regulations, the détenus were expected to repair to their respective wards, and there be locked up for the night. On my way to the gallery where I slept, I had to cross an esplanade in front of the governor’s house. Claudine noticed me from the window, and ran out to say “good night.” I carried her a few paces in my arms, kissed the pretty child, set her down, and received from the fond mother a gracious nod of approbation. The drum ruffled, it was the signal for the prisoners to fall in for roll-call, and I hurried on. Suddenly a piercing shriek arrested me. I turned round; Madame St. Simon had uttered it, and one movement of her arm told the cause. Aylmer was running madly across the esplanade in the direction of the old tower, with Claudine struggling in his embrace.

I dashed after him at headlong speed. He sprang into the building and bounded up the stairs—Claudine’s wild screams continued—and I heard her calling “William!” Although Aylmer had cleared one flight of steps before I entered, I overtook him as he jumped with his intended victim on the roof; seized him with one arm, and twisting my hand into his collar, half strangled him, and forced him to drop the child. Upon me the full fury of his rage was turned, and a deadly struggle commenced. In height and weight we were equally matched; but his maniac strength was superhuman. After a desperate conflict of a minute, both came heavily to the ground locked in each other’s arms, the madman uppermost.

In turn, he attempted to choke me, and I as desperately resisted. Apparently, the phrenzy of his rage rendered him insensible to pain; for though I caught his hand within my teeth until they met, the maniac would not let go his murderous hold. My strength failed, I found myself fainting, another minute and his triumph would have been complete, but fortunately, an alarm had been given that brought assistance, and three of the gendarmes who formed the prison guard, rushed on the tower roof with drawn swords, tore Aylmer away, and endeavoured to secure him.

With a marvellous effort the madman shook his assailants off, and answered their order to surrender with a laugh of wild derision—“Ha! ha! ha!” he shouted, “you fancy that Aylmer will be a prisoner. Tell your commander, that if that sailor fellow had not marred my scheme of vengeance, his fair girl would have been what in another moment I shall be—a shattered mass of lifeless flesh—and now for the leap of liberty! Ha, ha!” he roared out convulsively, and, with a demon’s laugh, before any could lay hands upon him, the maniac vaulted across the platform of the tower, and we heard, some twenty seconds afterwards, the dull sound his lifeless body made as it fell on the paved court below.

I had received some severe bruises in the deadly struggle with, the unfortunate madman; and my throat and neck were blackened by the pressure of his knuckles. The gendarmes supported me to the governor’s house, wine was given me, and the surgeons of the fortress were called in. From Madame, I received abundantly the ardent tokens of a woman’s gratitude in tears and kisses, while the old republican, her husband, held my hand in his, and, with the speechless eloquence of the eye, thanked me in the silence of a heart too full to give utterance to its feelings, for saving the treasure of his soul.

No wonder then, that with me the rigour of imprisonment was abated, and that I was now a captive but in name. At the governor’s table a cover was laid for me, the old man treating me as he would have done a son; and Nina, as his wife was named, regarding me as a brother. Of course I felt the kindness evinced by both; and I might have been supposed to be the happiest captive in the fortress. Yet the yearning after home continued; and many a sigh told Nina and her husband, that notwithstanding their efforts to remove it, “a sickening void was aching in the breast.”

“William,” said the old republican, as he passed the wine-flask over, “Why have you been so dispirited of late? Is it within my power to make you happier? Have you any thing to ask for?”

I kept silence.