Crecheling - Butler D. J.

A dystopian adventure of a special young woman coming of age in a world trying to rebuild from the apocalypse.

Dyan  is about to leave the Creche and become a Magister of the Buza System. Gifted with empathy and an understanding of people, Dyan will take her place as a teacher and nurturer of children in the only family she has even known. But before she can do so, she must pass a final test the System puts to her.

And that test is murder. 

Book 1 of The Buza System. Dark science fiction set in the crumbling ruins and blasted deserts of a future where all people are not created equal ... and where control is exerted by savage rituals of blood.