It's the seventeenth birthday . . . will it be their last?

Jessica and Elizabeth Wakefield are turning seventeen, and you're invited to the biggest party in Sweet Valley History!
But when tragedy strikes, be prepared. One of your favourite characters may be lost forever, and the Sweet Valley High you know and love will never be the same again.

"You think you've got everyone's darkest secrets figured out, while you're Little Miss Perfect," Devon shouted. "Well, you have no right to be so sanctimonious! You're the one who was cheating on me!"
Elizabeth felt the color drain from her face. A tiny part of her brain, the part that was still rational, was shocked to realize she actually wanted to strike him. That she was actually going to strike him. She raised her hand to slap him across his strong, angular jaw . . .
But something hit her first. It slammed into her feet from below, throwing her off balance and jamming every joint in her body. Devon grabbed her arm, the anger in his face transformed into fear. Impossibly, the water in the pool reached up as a single entity, like a sea serpant coming to life, before sloshing back into it's container, roiling frenetically. The patio around the pool rippled like water. Deep below the earths surface a power like nothing Elizabeth had ever imagined rumbled and roared and threatened to tear her world apart. The music went dead.
Then a girl's voice screamed, "Earthquake!"

Who will ive? Who will die? Earthquake