Well, it's hard to say exactly. But there could be unexpected plot twists. Maybe the train breaks down, or she discovers a hidden secret about her past.
It's quite possible that she'll have to use her machine-fixing skills to overcome obstacles during the train journey. Or perhaps she'll find out that she's being pursued for some reason.
She might encounter various adventures and challenges on the train. Maybe she'll meet new friends or face enemies.
In comics, trains could get hijacked by criminals or be part of a wild chase scene. Sometimes, they might even transform into some sort of fantastical vehicle with special powers.
It could get derailed or involved in some sort of adventure or chase scene.
It could involve a lot of drama and consequences. Maybe the girl has some deep-seated reasons for doing it, like revenge or being misled. This could lead to a major conflict and character development.
In the ending of Train to Busan, the main character Seok - woo sacrifices himself to save his daughter, Soo - an. She and the pregnant woman, Seong - kyung, manage to reach the tunnel that they thought would lead to safety. However, when they come out of the tunnel, they face soldiers who are ready to shoot them as they suspect them of being infected. But then they see that Soo - an is singing a song, which makes the soldiers realize they are not zombies, and they are saved.
Well, it could be a terrifying experience for her. Maybe she'll face danger and have to find a way to escape.
Having bacteria in the brain can be very serious for the girl. It might cause long-term damage to her nervous system. Usually, doctors will prescribe antibiotics and other treatments, but the recovery process can be challenging and uncertain.
Grace might face emotional distress and try to find ways to overcome the bullying. Maybe she'll seek support from friends or family.
There might be a businessman. He was busy with his laptop, typing away some important documents or emails.
The central character is the girl on the train. She is a complex character with her own issues. Then there are the two people in the house she watches from the train, a man and a woman. Their actions and relationship are key elements in the plot as the girl on the train tries to piece together their story.
The main character is Rachel, a woman with a drinking problem and a troubled past. There is also Megan, the woman Rachel spies on from the train. And Scott, Megan's husband.