"The Firebug" by Roy J. Snell is a mystery novel written in the early 20th century. The story centers around Johnny Thompson, a young boy with aspirations to fight fires and catch arsonists, as he embarks on a thrilling adventure in pursuit of a mysterious firebug responsible for multiple arsons in his city, including a devastating fire at a school. The opening of the novel introduces readers to Johnny as he eagerly awaits an alarm for a fire, showcasing his deep interest in firefighting. He is soon thrust into action alongside the city’s fire chief, racing to a burning school where he boldly enters the flames to save a young girl named Tillie. As he navigates through the chaos of the fire and the concerned onlookers outside, he becomes invested in unraveling the mystery of the arsonist, which hints at a deeper connection to the troubling social circumstances surrounding the fires. Johnny's determination and courage set the tone for an engaging narrative filled with suspense and the theme of youthful heroism amidst danger. (This is an automatically generated summary.)