Could be the book you loved the most, the series you daydreamed about, book that inspired you, fascinated you, your comfort read…anything.
And why.
I LOVED the Anne McCaffrey Pern books. I would walk around daydreaming about new adventures set in the books’ world. The Dragonsong books really connected my love of music with my love of fantasy (and animals).
Yes, she seemed so sassy and much older than I was when I read them too.
Well-stocked libraries (public funding) are so important for kids! My school’s library just happened to stock the series, but sounds like you got lucky with the sale.