Karen's Christmas Carol. (Baby-sitters little sister, #104.)

When Karen and her brother Andrew land parts in a local production of "A Christmas Carol", Karen discovers the real meaning of Christmas. Karen and Andrew are in 'A Christmas Carol'. Karen's part is small, but Andrew's is very big, and at first Karen is proud of him, but then her feelings change when she becomes jealous. How will she get her Christmas spirit back, while she finds it hard to be nice to Andrew?