Hints:

The Pearl

这是Paul说服Zach上家教的一段话，虽然是可怜天下父母心，但是或许这不是Zach真正想要的吧！

Let's start with The Pearl. It's got a sad ending, but it's good. We'll start with that. You know, it's not gonna be so bad. I think you're really gonna like being home schooled. Okay, I know this isn't what you want. But I need to keep you close to me just for a while. There are people in this neighborhood who aren't thrilled that we're back. People I don't trust.
从《珍珠》开始吧，结局有点悲伤，但是本好书。我们从那开始，你知道也没有那么糟糕。就像在家里上学一样。我知道这你不乐意，但我必须把你看好，暂时而已。这周围有些人不太乐意我们回来，我不信任的人。