In chapters 4 to 8 of "A Wrinkle in Time" by Madeleine L'Engle, Meg Murry, Charles Wallace, and Calvin O'Keefe encounter several significant characters and beings as they continue their journey through space and time.
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Mrs. Whatsit: One of the three mysterious beings helping the children. She plays a crucial role in guiding Meg, Charles, and Calvin on their quest to rescue Meg's father.
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Mrs. Which: Another of the three supernatural beings, she has a cloud-like presence and is more enigmatic. She provides important guidance and support to the children.
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Mrs. Who: The third member of the trio, she speaks in quotations and offers wisdom through the words of famous figures.
These characters provide insight and assistance as the children navigate their challenges, including their eventual confrontation with the darkness represented by IT on the planet Camazotz. The chapters emphasize themes of love, individuality, and the struggle against conformity.
If you have more specific questions about those chapters or characters, feel free to ask!