The Maze Runners (Newt)

Cat is the first and only girl in the Glades, until Thomas came and changed it all that is.
Helping Alby with his leader ship, helping Minho try to figure out if they missed a possible exit, helping Newt in her spare time, and helping the newcomers settle into their new home is her role in the Glade.
And in case you're confused, she's the mother that keeps all in comfort as well as keeps thing in order when she feels the need to step in, and she's one of Minho's best runners.
Yet their somewhat comfortable lives change when a boy named Thomas appears, and Cat finds herself unable to protect her friends, and when she can't protect her friends - why does she exist?
To run the Glade? To run in fear? To die?
Only Cat's skill of running will be able to determine her and the others destiny.