The final installment of the trilogy jumps ahead two years. Isabel "Belly" Conklin is now a college student, and the long-standing love triangle between her and the Fisher brothers—Conrad and Jeremiah—reaches its breaking point.
Some online libraries and repositories offer free e-books, including classics or books with open licenses. You can try searching for: the summer i turned pretty book 3 pdf google drive
As for accessing the third book, "We'll Always Have Summer", in PDF format via Google Drive, I can provide some general guidance: The final installment of the trilogy jumps ahead two years