Again, I don’t really remember any picture books. But a book I really liked when I was a child is Ronja Røverdatter (Ronia, The Robber’s daughter) by Astrid Lindgren. It follows Ronia, a girl, growing up among a clan of robbers living in a castle in the woodlands of early-Medieval Scandinavia. It probably started my spiral into loving fantasy because it has a lot of fantastical creatures in it.
Quick note: I was actually surprised to learn that they have made a new live action series for this book on Netflix this year.
Lindea's Thoughts on Books & Writing 