Answer:
The characters are going to the upper floors of the building. They are doing this to try to escape the flames and eventually help the people they encounter along the way.
Step-by-step explanation:
"Uprising" was written by Margaret Peterson and is characterized as a historical fiction, since the author based the events of history with the fire at the triangle factory.
During the narrative, the sparks of the fire end up causing the building where the characters are surrounded by fire, in an attempt to survive and help other people, the characters run to the upper floors, many of them being consumed by the flames or jumping the windows in a futile attempt to survive.