Caroline arrives in the Glade the month before Chuck arrives, and is starting to get used to it. This is, of course, before Thomas arrives. Caroline was sent in to the Glade to see how the Gladers would react to having a girl there. The people of WICKED wanted to make sure that they wouldn't freak out and kill Teresa...
Group B of WICKED's trials, a.k.a the 'Girl Group' - When Rachel was delivered to the girl version of the Glade. Rachel arrives in the girl version of the Glade knowing nothing about herself but her first name. When a boy shows up the next day in this place, which is full of only girls, he announces that everything is...
The Gladers thought the Maze Trials were over. Escaping the Maze once was only the beginning.