Read it through once

She gradually withdrew her eyes from me, and turned them on the fire. After watching it for what appeared in the silence and by the light of the slowly wasting candles to be a long time, she was roused by the collapse of some of the red coals, and looked towards me again—at first, vacantly—then, with a gradually concentrating attention. All this time Estella knitted on. When Miss Havisham had fixed her attention on me, she said, speaking as if there had been no lapse in our dialogue,—