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He turned his eyes on Mr. Jaggers whenever he raised them from the table, and was as dry and distant to me as if there were twin Wemmicks and this was the wrong one. (3.48.13)
There ARE twin Wemmicks. Wemmick is so good at changing his person when at Jaggers’ office, that is almost makes us feel a little uneasy about his integrity. But at the Walworth castle, Wemmick is an absolute angel.