Answer: In the book "Tuck Everlasting" by Natalie Babbitt, Mae Tuck gives Winnie Foster the music box as a symbol of their friendship and as a reminder of the time they spent together. Mae Tuck is an immortal and she, along with her husband and two sons, has lived for many years without aging. Winnie Foster is a young girl who has been searching for adventure and meaning in her life, and she meets the Tucks by chance in the woods.
Throughout the book, Mae and Winnie develop a close bond, and Mae comes to see Winnie as a daughter figure. Mae gives Winnie the music box as a symbol of their friendship and as a reminder of the memories they have shared. The music box also serves as a warning to Winnie, as it reminds her of the dangers and complexities of immortality, and the consequences of drinking from the spring that the Tucks have been drinking from for years.
In giving Winnie the music box, Mae is also passing on a piece of herself and her life story, and she is entrusting Winnie with a part of her own history. This act demonstrates the depth of Mae's affection for Winnie, and shows the close relationship that has developed between the two characters.
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