From the publisher:
Carnival is supposed to be a happy time, but Lily wishes it were over. Her family has been working on the gorgeous hummingbird costume for months, but it’s Lily’s big sister, Christine, who will wear it at the Children’s Carnival. Lily doesn’t want to wait till next year for her chance to jump up in costume. She wants to play mas now! How Christine’s big day turns out to be a big day for Lily as well makes a satisfying story, with lilting dialogue and pastel illustrations that capture the tropical colors and vibrant energy of Carnival in Trinidad.