Around age 10, as I started my SF career, Heinlein juveniles and Winston SF series, the local librarian, an old family friend, put OUT OF THE SILENT PLANET in my stack. Confused the heck out of me. But things got better. SCREWTAPE around age 15, and nothing more until college, when Narnia came to my attention because Tolkien had first burst upon the college scene then. This was the start of my Tolkien/Lewis/Chesterton /Belloc/etc and etc, obsessions that continue to this day.
My reading age was out of sight. OTOH, I need help following the page numbers,