The correct answer is:
"So when she retreated with her laptop to her room and refused to leave, it created a wave of discontent at the school."
In Japanese mythology, when Amaterasu's brother, Susanoo, destroyed her rice fields and killed one of her attendants in a fit of rage, she retreated inside a cave, plunging the earth into darkness and chaos.
By hiding in her room with her laptor, Lara is repeating Amaterasu's actions.