Girl on a Mission by Cindy Ellis

http://www.amazon.com/Girl-Mission-Cindy-Ellis-ebook/dp/B008P4LRHI

Emery Craig is both literally and figuratively a girl on a mission in this book about a young teen whose first time away from home on a mission trip brings new friends, new challenges, and a new perspective on her relationship with God.  Facing hard work, jealousy, and startling revelations, Emery is transformed into someone she never expected to be. And in the midst of it all, could it be she's falling in love?