A Wrinkle in Time
Before going to Camazotz, Meg recieves gifts from the Mrs. W's. What is the significance of Mrs.Who's gift to Meg?
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Mrs. Who gives Meg her spectacles and tells her to only use them as a last resort.
http://www.gradesaver.com/a-wrinkle-in-time/study-guide/summary-chapter-6-the-happy-medium