The monks quitted the abbey at midnight. Matilda was among the choristers, and led the chaunt. Ambrosio was left by himself, and at liberty to pursue his own inclinations. Convinced that no one remained behind to watch his motions, or disturb his pleasures, he now hastened to the western aisles. His heart beating with hope not unmingled with anxiety, he crossed the garden, unlocked the door which admitted him into the cemetery, and in a few minutes he stood before the vaults. Here he paused.
He looked round him with suspicion, conscious that his business was unfit for any other eye. As he stood in hesitation, he heard the melancholy shriek of the screech-owl: the wind rattled loudly against the windows of the adjacent convent, and as the current swept by him, bore with it the faint notes of the chaunt of choristers. He opened the door cautiously, as if fearing to be overheard: he entered; and closed it again after him. Guided by his lamp, he threaded the long passages, in whose windings Matilda had instructed him, and reached the private vault which contained his sleeping mistress.