What is the conflict solved in The Secret Garden book?

The main conflict solved in "The Secret Garden" is the emotional and psychological growth of the protagonist, Mary Lennox. Through her interactions with the garden and the people around her, Mary learns to overcome her selfish and spoiled nature, developing empathy, compassion, and a sense of belonging. Additionally, the healing power of nature and the transformative effect of nurturing relationships are central themes in the resolution of the story's conflicts.