Rose: Annah is a kick-ass heroine--nice balance between human frailties and survival skills.
Thorn: A love triangle quadrangle. Involving twins.
As in which twin do I really love? Which twin does he really love?
No. Stop it.
Rose: Excellent action and suspense, along with the gory truth of a zombie infection.
Thorn: He was mine first, but he really loves you. I know he was yours, but he has chosen me. Yes, I'm repeating myself, but really--there's a thorn for each couple involved in this love quadrangle of twinness.