She went about it in this way. Noting his custom of making a complete round of the clocks each night after dinner, she took advantage of Mrs. Postlethwaite’s inclination to sleep at this hour, to follow him from clock to clock in the hope of overhearing some portion of the monologue with which he bent his head to the swinging pendulum, or put his ear to the hidden works. Soft-footed and discreet, she tripped along at his back, and at each pause he made, paused herself and turned her ear his way. The extreme darkness of the halls, which were more sombre by night than by day, favoured this attempt, and she was able, after a failure or two, to catch the No! no! no! no! which fell from his lips in seeming repetition of what he heard the most of them say.