The Talking Eggs by Robert D. San Souci illustrated by Jerry Pinkney*

This Creole folktale is originally based on European folktales.
Rose and Blanche live with their mother where Rose is the favored one.  One day Blanche goes into the woods and is kind to an older woman.   The older woman repays Blanche for her kindness which causes the mother and Rose brim with envy.  When Rose searches and finds the older woman, her unkindness is duly rewarded.
Point to discuss/warnings: parent favoritism/cruelty; the older woman removes her head to comb her hair; Rose takes the older woman's head and puts it far away from her so she cannot reach it; phrase "bloody murder"
My preschooler wants me to buy this book.
*Highly recommend.
Guided Reading Level: P (3rd grade)
Caldecott Honor Book