Cody Bear - The Snack Cake Chronicles, #1

Rescuing Tacy comes at a price. Her history is a secret. She doesn't know phones, videogames, even snack cakes. She's underweight, afraid of everything, and now his next-door neighbor's foster daughter. As a computer geek who never talks to girls, sophomore Cody Highland didn't expect to be asked to play guardian to a teenage girl on her first day of school, but the neighbors ask anyway, putting their most precious possession in his hands. He says yes, and so it begins.
Life with Tacy is exciting, dangerous, emotional, and gives his life meaning. Suddenly the computer geek is singing in the choir and auditioning for school plays. Through it all he becomes her protector, her teacher, and her friend. But when her past comes knocking, being Tacy's protector will become the hardest thing Cody has ever attempted, because of all the changes she's made in his life, this one will come the closest to taking him down.
Tacy herself may have to save him, assuming she can find the strength to do it. Cody Bear is part of The Snack Cake Chronicles, Christian young adult novels. Read them in any order, tales about growing up, growing in faith, and learning to love.