The Sisterhood Of The Travelling Pants/The Second Summer Of The Sisterhood by Ann Brashares

Four teenage friends stay connected across summers by sharing a single pair of jeans that somehow fits each of them, using that bond as they face separate adventures and trials—first loves, family conflicts, loss, and the messy choices of growing up; in the following summer they encounter fresh tests of loyalty, new responsibilities, heartbreak, and grief that challenge them individually and together, ultimately forcing each girl to confront who she is and what their friendship means.

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