My Sister's a Ghost

Britt is your average 14 year old girl, she's smart, funny, talented. That is, until she finds out her sister, Lily, who's been dead for 7 years, is really alive. Well, she's a ghost, that is.

Now Britt has to keep that secret from her parents and friends and family, and it isn't as easy as she'd thought it'd be. But, is her sister really a ghost? And, how ever did she die?