As I child I always loved the thought of finding my own secret place to hide away from the world such as the garden that Mary found. Alas, I was not as fortunate, but I can still visit those places when I re-read this book. Even as an adult, I still re-read it at least once a year. I think I'm on my 4th copy of the copy I use for reading each time as I wore the others out! If possible, find one of the beautifully illustrated versions (you might have to go to a bookstore for that) to look at some of the gorgeous illustrations.
Wonderful, amazing story for all ages!