The Blue Castle is a 1926 novel by Canadian author Lucy Maud Montgomery, best known for her novel Anne of Green Gables (1908). The story is set during the 1920s in the fictional town of Deerwood, located in the Muskoka region of Ontario, Canada. Deerwood is based on Bala, Ontario, which Montgomery visited in 1922. Maps of the two towns show similarities. This novel is considered one of L.M. Montgomery's few adult works of fiction, along with A Tangled Web, and is the only book she wrote that is entirely set outside of Prince Edward Island. It has grown in popularity since being republished in 1990. The book was adapted for the stage twice; in 1982 it was made into a successful Polish musical, and ten years later Canadian playwright Hank Stinson authored another version, The Blue Castle: A Musical Love Story.
Lucy Maud Montgomery (November 30, 1874 – April 24, 1942), published as L. M. Montgomery, was a Canadian author best known for a collection of novels, essays, short stories, and poetry beginning in 1908 with Anne of Green Gables. She published 20 novels as well as 530 short stories, 500 poems, and 30 essays. Anne of Green Gables was an immediate success; the title character, orphan Anne Shirley, made Montgomery famous in her lifetime and gave her an international following. Most of the novels were set in Prince Edward Island, and those locations within Canada's smallest province became a literary landmark and popular tourist site – namely Green Gables farm, the genesis of Prince Edward Island National Park. She was made an officer of the Order of the British Empire in 1935. Montgomery's work, diaries, and letters have been read and studied by scholars and readers worldwide. The L. M. Montgomery Institute, University of Prince Edward Island, is responsible for the scholarly inquiry into the life, works, culture, and influence of L. M. Montgomery.