In this chapter, Mary Lennox's understanding of her cousin Colin Craven deepens as she learns more about his life and struggles. Colin is a sickly boy who has been bedridden for most of his life, confined to the dark and oppressive atmosphere of his room at Misselthwaite Manor. His mother passed away when he was young, and since then, he has been raised in isolation, protected and coddled by his father, Archibald Craven, who is emotionally distant and often away. Colin's belief that he is too weak to walk has been instilled in him by his surroundings, and he is constantly surrounded by a negative atmosphere that has reinforced his helplessness.

Mary's initial impression of Colin is one of pity, but as she learns more about him, her determination to help him grows stronger. She sees that Colin's misery is not just due to his physical condition but also his emotional state, which is exacerbated by his isolation and lack of stimulation. Mary, who has recently begun to experience her own transformation through her discoveries in the secret garden, feels a sense of responsibility to bring Colin into her newfound world of joy and healing.

Determined to change Colin's fate, Mary devises a plan. She realizes that Colin needs to experience the beauty of the garden, to feel the sun on his face and to breathe in the fresh air. The idea of the garden, a place where she herself has found solace, is her motivation to inspire Colin. Mary begins to understand that she has the power to influence Colin's life positively and that friendship and connection can lead to healing.

Mary's relationship with Colin is complex; she is both sympathetic and frustrated with his attitude. She pushes him to confront his fears, challenging his belief in his own weakness. Mary is determined to show Colin that he is stronger than he thinks and that he can reclaim his life. This chapter marks a turning point, as Mary's newfound strength and determination to help Colin signal her growth from a lonely, self-absorbed girl to a caring and resourceful friend.

As the chapter progresses, the dynamic between Mary and Colin starts to shift. Mary speaks of the secret garden with enthusiasm, sharing her experiences and the magic of the place with Colin. She tells him stories of the flowers blooming, the beauty of nature, and the joy she feels while tending to the garden. Her passion ignites a flicker of curiosity and hope in Colin, who has been shrouded in darkness for so long.

The chapter ends with a sense of anticipation as Mary resolves to take Colin to the garden, believing that it might be the key to unlocking his potential and bringing joy back into his life. This determination sets the stage for the next steps in their journey together, highlighting themes of healing, friendship, and the transformative power of nature.