"The Secret Garden" is a novel written by Frances Hodgson Burnett, first published in 1911. The story follows a young girl named Mary Lennox, who is sent to live with her uncle in a large, mysterious mansion in England after her parents die. While exploring the estate, she discovers a hidden, neglected garden that has been locked away for years. As Mary begins to tend to the garden, she meets new friends, including Dickon, a kind boy who loves nature, and Colin, her sickly cousin. Together, they bring the garden back to life, which helps them heal emotionally and physically, showcasing the transformative power of nature and friendship.