Ghosts
By Raina Telgemeier. Children and adults alike will shed happy tears over this graphic novel about a Mexican-American family whose younger daughter has cystic fibrosis. In the days leading up to Día de los Muertos, the sick girl and her older sister cope with impending mortality through encounters with friendly spirits.
Source: https://www.amazon.com/Ghosts-Raina-Telgemeier/dp/0545540623