Deadly Summer — Francine Pascal

Revenge...

Jessica and Elizabeth Wakefield are working as summer interns at The Sweet Valley News when they hear that a patient has escaped from a nearby psychiatric hospital. Assigned to research the man's past for an article, the twins discover that Donald Redman was once a student at Sweet Valley High.

They learn that his fellow students tormented him and that after a disturbing incident involving one of those students, Redman was expelled. He vowed to get revenge for his humiliation.

Now a fugitive, Redman sees Elizabeth and mistakes her for the popular, beautiful girl who hurt him most all those years ago. When their paths cross in the deserted high school stadium, he knows he finally has his chance to get even! Can he be stopped before it's too late?