Elizabeth: Next Stop, Jr. High (Sweet Valley Twins Super Editions #13) by Francine Pascal, Jamie Suzanne - Vintage Paperback

From the personal journal of soon-to-be- eighth grader Elizabeth...

Spending the summer helping people and making new friends...what could be cooler? But Costa Rica is more like a nonstop party...

Not that I'm complaining.  It's just weird...sort of how it is with J.P., I guess.  At first I thought he was a jerk. But now...  now I think I might be falling in love with him.

What have I gotten myself into?