Book four in the New York Times bestselling series The 100. Now a hit TV show on the CW! It's been a month since the new dropships landed and the rest of the Colonists joined the hundred on the ground. The teens, once branded juvenile delinquents, are now leaders among their people. It should be a time for celebration and togetherness, but a new threat appears before long: a fanatical cult determined to grow its ranks and "heal"...