The Purity Ring
Mary Lou's mother gave her the purity ring to "contain her curse" (14.15)—that being the curse of excessive passion, which she believes affects all the women in her family. It's not stated outrig...
Petra's Overnight Case
The overnight case that contains Petra's "medicine" is actually full of female hormones, like estrogen. In other words, the medicine that helps Petra in her transition from biologically male to fem...
The Giant Snake
The island's giant snakes are a threat—one almost kills Sosie early in the book—but they're also mistreated. After stabbing a snake to death, Sosie and Jennifer discover that it is covered in t...
The Totems and the Ruined Temple
On one part of the island are the remains of a lost civilization. First Sosie and Jennifer see it when they find Tane's radio and rations, and Nicole and Shanti find it later on. We later learn fro...