It's a "The Walking Dead" story. Mainly based in the Walking dead game universe. The novel follows The story of an ex soldier named Emma, who lost her baby brother to the apocalypse, because of her anger and negligence and now, she's trying to find a way to forgive herself and redeem herself. It uses the type of zombies used in the walking dead, that is "walkers". That's all I've copied. So I don't know if this will be called a fanfiction or not