Who Is Ruby In The Darkest Minds?

In the book The Darkest Minds, the main character's name was Ruby. It starts off with Ruby being ten-years-old, when something big breaks out in the world. There is a child disease that starts when a person would hit puberty. Most of the kids would be nine to fourteen. All those kids in get taken to facilities around America. All facilities are guarded by PSFs. PSF stands for: Psi Special Forces. When they first get into the facility, they are labeled colors. The colors are: red, orange, yellow, green, blue.

The colors stand for different abilities that these kids may have. Ruby was an orange. However, being an orange was dangerous, so she pretended to be a blue. She was there for six years. Then she gets broken out by a woman named Cate.