Requiem - Lauren Oliver

Battling against a society in which love has been declared a disease, Lena now finds herself at the centre of a fierce revolution. But the Wilds are no longer the haven they once were as the government seeks to stamp out the rebels. And Lena's emotions are in turmoil following the dramatic return of someone she thought was lost forever...
Told from the alternating viewpoints of Lena and her best friend Hana,Requiem brings the Delirium trilogy to an exhilarating end and showcases Lauren Oliver at the height of her writing powers - emotionally powerful and utterly enthralling.

*May include spoilers*