Nancy, Bess, and George look for Nancy's missing father in the twenty-second book in the Nancy Drew Diaries series, a fresh approach to a classic series. While Nancy's dad is away at a conference in Washington, DC, she invites Bess and George over for a slumber party. The girls are having a great time until Nancy gets a call from a number she doesn't recognize. Her dad never showed up for his panel and he isn't in his room. No one's...