‘Oh no; she has not adopted me. I’m not a candidate for adoption.’ ‘I beg a thousand pardons,’ Ralph murmured. ‘I meant—I meant—’ He hardly knew what he meant. ‘You meant she has taken me up. Yes; she likes to take people up. She has been very kind to me; but,’ she added with a certain visible eagerness of desire to be explicit, ‘I’m very fond of my liberty.’ Location 1079
This is a conflict of recognition. Ralph is asserting something about Isabel that she rejects. But what does she mean by liberty here? She has a kind of solipsistic self-consciousness. Her sense of herself does not depend on the objective world, on what lies outside her childhood home in Albany. It does not even seem to depend on anything objective inside the house. It is taken up in the books she reads. She is certain of herself as a self, as a subject in the world, through the books she reads.
The foundation of her knowledge was really laid in the idleness of her grandmother’s house, where, as most of the other inmates were not reading people, she had uncontrolled use of a library full of books with frontispieces, which she used to climb upon a chair to take down. When she had found one to her taste—she was guided in the selection chiefly by the frontispiece—she carried it into a mysterious apartment which lay beyond the library and which was called, traditionally, no one knew why, the office.
The space outside, “which lay beyond the library,” is where she develops herself, does the work to build herself up. She is guided only by her desire, by her innate response to the frontispiece, a verso-sided image that captures the tone of the book. She consumes these books and they form her identity through negation. In this space that lies beyond, she consumes books that no one else reads. What is left at the end after each book is devoured is herself, now enlarged to incorporate some new world, but herself nonetheless, unchanged but changed. That is the basis of her independence, that she can be led by her desire to consume the world and be both changed and unchanged. Isabel is the mysterious apartment, set apart from the world, full of books that no one can read but her.