Russ, Nadia, Jameson, and Mallory are about to embark on their riskiest mission yet as they attempt to infiltrate the ruthless Associates in Revelation, the thrilling final installment of the Edgewood series The Edgewood teens decide to go undercover, joining the Associates in order to find their weaknesses and overthrow them from within. To do this, they must successfully convince the organization they've switched alliances by completing a centuries-old challenge, something no one else has been able to achieve. For the Edgewood friends, the stakes have never been higher, and they are about to be challenged in ways they never imagined.