AMY'S PEN PAL (Sweet Valley Twins)
Elizabeth Wakefield and her best friend, Amy Sutton, have big  plans for the holiday weekend, including a fabulous party, a family  barbecue, and the chance to see a dreamy deejay broadcast live from the  Sweet Valley Mall.But the weekend gets off to a surprising start  when Amy's pen pal from San Francisco shows up unexpectedly. Samantha  Williams seems every bit as nice as her letters until Amy introduces  her to the Unicorns. Suddenly, the popular girls can't get enough of  Sam and her stories, and Amy begins to feel left out. Why hasn't Sam  ever told her about all those wonderful things she's done? Elizabeth  and Jessica have a feeling she's making it all up. But will Elizabeth  be able to stand by while her twin plans a coldhearted plot to uncover  the truth?