Heresy

Well into adolescence, Dougal is finally doing his duty to the diet and marrying his allotted bride. They risk their lives by going abroad for the honeymoon. On their return, Dougal, his wife and the whole community face the biggest threat of all: heresy!
A riveting tale of a not-so-distant future in which who you are is what you eat. And loyalty depends on sharing, or refusing to share blood. Literally. Dark Future, good reading.