Steel- Newt (The Maze Runner)

Adrian showed up in the Glade about a year after Alby did. Just as the Gladers had established a balance, she had appeared and thrown it off a bit. of course, they could't hate her for long. Not after her constant displays of tireless determination and optimism. Despite getting on well with many of them, she kept to a select few.
Often found in the Med-jack hut, she would greet each Glader by name as she patched him up. She had a good system, and it worked for her.
What happens when all of the Runners plus Alby show up carrying a bleeding and unconscious boy into the infirmary? One decision she made could affect her whole life as she knew it.

And why was a rod made of steel so essential in all of it?