The new book, Sweet Valley Confidential, takes place 12 years after the high school series, when the twins and their friends are in their late 20s and early 30s. It will, according to publisher St Martin's Press, see "the real world intrude after a perfect childhood". "I've had thousand of queries from fans over the years wondering what Jessica and Elizabeth would be like as adults. Well, Sweet Valley Confidential should give them all the answers," said Pascal, who was originally inspired to write the series by the experiences of her three daughters. "And I can guarantee they will be very surprised. Actually, more like shocked."

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St Martin's Press, which will publish the novel in early 2011, gave away little about the plot but fans are already speculating about which direction Pascal will take her characters. "Most everyone hopes Elizabeth and Todd are married, but we all have an idea Liz is having an affair if that's the case," said one reader, who has written about the entire series on her blog, Shannon's Sweet Valley High blog. "We figure Jessica has probably gone to Hollywood to be a star, but some of us are kind of hoping she's failed. Because seriously, that girl has had it too easy. And of course we all want to see the return of Lila, Bruce and the other side characters. It just wouldn't be Sweet Valley without them. A few of my readers are hoping Lila and Bruce are married, but I'd rather see Lila and Jessica trolling for guys together like they always have."