Lock And Key by Sarah Dessen

In this poignant coming-of-age story, a teenage girl named Ruby is forced to confront her past and redefine her understanding of family and belonging after her estranged sister, Cora, takes her in following their mother's abandonment. As Ruby navigates her new life in a wealthy neighborhood, she grapples with trust issues, forms unexpected friendships, and discovers the true meaning of home. Through her journey, she learns to open her heart and embrace the love and support of those around her, ultimately finding strength in vulnerability and the courage to forge her own path.

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