Leo Tolstoy wrote that all happy families are alike, but that every unhappy family is unhappy in its own unique way. Whether or not that’s true—what is happiness? Let’s not get into philosophy, though—we have to agree that unhappiness and hardship come in all shapes and sizes. Similarly, and this we think is universal to pretty much all families, secrets can cause discord and discontent within their ranks. Maybe that’s why we love hanging out with secretive families in our books, so as to avoid dealing with our own—but now we’re getting into psychology, and let’s not go there either. Let’s go right to what we know best: books. Books we love to disappear in, books we love to escape with, and books we love to be a little voyeuristic about.