"Rilla is Anne and Gilbert Blythe's youngest daughter, an excitable 15-year-old who is unaware of how the world works, and is only interested in having fun. But the world is on the brink of a global war, and soon Rilla's family and life are turned upside down, as several of her brothers enlist in the army and are sent to fight overseas.
The book follows Rilla's life through the duration of World War I, as she grows up quickly from the responsibilities put on young women in this time. She adopts an orphaned child and raises him, runs the local Junior Red Cross, falls in love with a soldier just before he deploys, and even assists in the elopement of a soldier to his beloved.
This novel captures the anxiety of living with one's family away at war, as well as captures the unique perspective of a woman's life at home during the First World War (and is the only Canadian novel that shows this perspective written by a contemporary of the war). Through the sadness and bleak moments brought to the world in this war, and the loss that the Blythes face, there is yet again hope to be found in the love of the families and neighbors of Ingleside."