Showing Sweet Valley Confidential: Ten Years Later by Francine Pascal

"The Wakefield Twins--and the whole gang from Sweet Valley High--are back! What terrible secret has torn Jessica and Elizabeth apart?" Ten years after graduation, the Wakefield twins have had a falling out of epic proportions. When Jessica commits a complete and utter betrayal, Elizabeth flees to New York to escape the pain and immerse herself in her lifelong dream of becoming a serious journalist.Jessica remains in California, dealing with the consequences of her heart-wrenching choices. She's built a full life for herself but dearly misses her sister. With Elizabeth as her enemy, Sweet Valley is no longer the idyllic town of their youth. Jessica longs for forgiveness. But Elizabeth, always the "good twin," can't forget Jessica's duplicity--and soon decides the only way to heal her broken heart is to exact sweet, sweet revenge...