12 year-old BFF's Ginnie and Tillie want to be sisters. Tillie's divorced mom plus Ginnie's widowered dad could equal a lifetime of round-the-clock girl talk and slumber parties. Too bad Dad vowed to never marry again. Ginnie and Tillie come up with the perfect scheme to change his mind: Operation Secret Sisters
Things get more complicated when Ginnie stumbles across her mom's hidden journals. Ginnie can finally get to know the mother she doesn't remember and her dad doesn't talk about—if Dad doesn't take them away.