Title: Shatterproof (The 39 Clues
Subtitle: Cahills vs. Vespers, #4)
Subjects: Kidnapping, Families, Brothers and sisters, International Criminal Police Organization, Adventure and adventurers, Diamonds, Juvenile fiction, Ciphers, Fiction, Hostages, Stealing, Theft, Orphans, Good and evil, Children's fiction, Criminals, fiction, Fantasy fiction, Adventure and adventurers, fiction