Answer:
Mattie and Grandfather learned about worsening condition of the city due to yellow fever.
Step-by-step explanation:
Fever 1793, is historical novel written by Laurie Halse Anderson . The novel is about yellow fever, an epidemic, that consumed many lives in Philadelphia in 1793. The novel revolves around the life of Mattie and her family during this epidemic period.
In Chapter 8, when Mattie and Grandfather visited the newspaper office they learned that the condition is worsening in the city due to the yellow fever. And, that people are leaving the city and fleeing to other states. They also learned that death toll are expected to rise in Philadelphia.
On the way back to home, Mattie and Grandfather encountered with a man carrying Mattie's mother's corpse.