The book begins with Jonathan, the main character, approaching the correction facility as the people on the boat taunt him. They tell about the horrors, so the reader gets frightened with Jonathan. This establishes the mood of one of mystery because the reader is wondering what is going on.
Jonathan arrives at Slabhenge, and realizes that this is the exact place that he needs. The reader learns of the dark setting and what Jonathan will be staying at. This moment further increases a mood of mystery because the reader is wondering about what Jonathan did.
The Admiral checks in Jonathan around Slabhenge. The reader learn more about the characters and the setting. It shows the conditions like how Jonathan has to write a letter home to his parents that lie about his condition, increasing the Slabhenge's profit. This is important to the rest of the book because it makes the reader want to rebel with Jonathan, which is a major point of the book.