In the final book in the Matched triology, Cassia, Ky, and Xander work together to bring back what they have lost in the Society: the freedom to choose. Cassia also discovers the power of creativity.
Lord Voldemort is back at Hogwarts, but few want to believe Harry Potter and his friends, Ron and Hermione. So they join the Order of the Phoenix, a secret organization led by Albus Domedore, the headmaster of Hogwarts. They practice defensive spells so they will be ready for the final showdown.