Macy Queen is a fictional character from the popular children's book series, The Pigeon Finds a Hot Dog! by Mo Willems. She is a young, enthusiastic girl who loves to explore and discover new things. Macy is known for her curiosity and adventurous spirit, often leading her to exciting experiences. In the stories, Macy interacts with various characters, including Pigeon, who is known for his humorous antics. Through her adventures, Macy teaches readers about friendship, creativity, and the joy of learning. Her character encourages children to embrace their imagination and explore the world around them.