A famous case. A missing girl. If they find her, will they be heroes? Or dead?Bored out of her mind during a summer with her police detective father in Las Vegas, Jessica (aka and "Jex and ") Malone starts doing what she does best - snooping. When she meets three new friends who share her passion for crime, from the geek to the fashionista, suddenly, the stifling desert days don't seem so long.Her dad is never around, just like when her parents were married. But Jex's crew, the Drew-Ids, take the pledge of eternal secrecy and then get down to the good stuff - digging through the cold-case files in Dad's home office.One of them, the thirteen-year-old case of Patty Matthews, is still a mystery. Finding Patty, who vanished into thin air, became such an obsession for Jex's father that it destroyed the Malones' marriage. So not only is this a big deal, it's personal.Jex is determined to find out what really happened, and her excitement is contagious. Soon her friends are all on board and so is the missing girl's brother, the hunky Cooper Matthews.But as they dig up more and more troubling information - more than the cops ever did - they also get the clear message that someone out there wants to prevent the truth from coming out. That somebody is also prepared to do anything, absolutely anything, to prevent it.Jex isn't afraid; after all, she's a cop's daughter. But maybe she should be.Laced with humor, toughness, and real CSI investigation techniques, Jex Malone could be the Nancy Drew for a new generation - but with a chilling twist. These wannabe detectives are on the brink of finding out the fate of poor missing Patty. But will they disappear without a trace, too?