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).
Malory Towers, Famous Five, Secret Seven, etc. Love Enid Blyton’s works to this day! These series were my entire childhood.
I had all the Malory Towers books and I had a couple Famous Five and Secret Seven. I really loved them. Couldn’t find them in the libraries here in the US but I had Canadian relatives.
Because of Malory Towers I would pick up any boarding school story I found in a secondhand store. Lots from the 1940s.
Can I ask how old you are? (I’m late 50s and I think it was unusual for someone my age to love them so much.)