Betrayal and Butcherknives

"Their eyes were like a cat's, narrow pupils cutting into my soul. Their faces were sharp with pointed edges. Their postures were fragile and wispy. These are not human. Why are we letting them in?"

The Palace is home to mankind's last. It has six factions: Medics, Warlocks, Planters, Crafters, Bullets and Scribblers. Each of these groups of mankind alive by doing a certain job, and it has been like this for twenty years, since The War for Earth. Against the Screechers.
Quill is a seventeen year old Scribbler whose parents were brave writers about the war before they were brutally butchered by an unknown source. She is full of ideas and smiles-but then The Outsiders come.
Murders pop up everywhere, each faction losing someone special. But all of mankind is next-Quill and her companions hear them for the first time in twenty years; their screams echo through the Earth.
The Screechers are coming.