And now both Sophie books, as well as the two other Christian YA freebies offered recently, are now free in the Barnes & Noble store.
Might as well list them all below instead of bumping up all the individual threads. I figure if you're interested in YA Christian Fiction to begin with, you're probably already looking here.
Sophie's World
Sophie's Secret
Motorcycles, Sushi & One Strange Book, also by Nancy N. Rue, #1 in Real Life series
Catwalk by Melody Carlson, #2 in On the Runway series (#1 Premiere previously offered free for Kobo & Kindle)