Do not become alarmed : a novel

"From a beloved, award-winning writer, the much-anticipated novel about what happens when two families go on a tropical vacation -- and the children go missing. When Liv and Nora decide to take their families on a holiday cruise, everyone is thrilled. The ship's comforts and possibilities seem infinite. The children -- two eleven-year-olds, an eight-year-old, and a six-year-old -- love the nonstop buffet and the independence they have at the Kid...