At this point in the book, Dr. Manette does not know that Charles Darnay is a relative of the Marquis St. Evremonde. He does seem to recognize him, and gives a look of distrust and concern, but his daughter Lucy is glad that Charles is released because she did not believe he was guilty of the crime with which he was charged. Later, after Charles asks for Lucy's hand in marriage and Dr. Manette begins to suspect who Charles really is, Dr. Manette begins to fall back into the madness caused by his imprisonment.
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