The Shield Series: Evanescent

Brinn Kiernan's seventeen year old body is dying, prompted by symptoms beyond mortal medicine. At the end of a thousand mile journey, in search of answers, she finds a world within her world that she never guessed could exist. It is crowded with people who are not people at all but creatures that are able to provoke and heal her symptoms at will. Among them is her biological twin, Olivia, who has the answers Brinn seeks. Yet she is unwilling to divulge them, hoping to bring Brinn's life to ...