Inkheart

I think I first read this book at about 12 or 13, but I gasped remembering Inkheart and Inkspell - this was one of the first books I ever read that had me on the edge of my seat and really viscerally invested in what was happening with the characters. Funke weaves such a comprehensive world with such rich relationships within it, and I remember breathlessly reading on to find out what was to come of the characters I'd grown to love. Highly highly recommend, particularly I think for young adults/adolescents, and definitely on my list to re-read.