These 10 must-read novels about the 1918 pandemic, often referred to as the Spanish flu, fictionalize the devastating and deadly 1918 influenza (flu) pandemic, which was the most severe influenza outbreak of the 20th century killing more people than World War I. These gripping stories told by doctors, nurses, soldiers, and everyday civilians about the 1918 pandemic bring to life the struggle to survive against this often overlooked and forgotten epidemic.