Who is turtle And y is she a brat?

Turtle is a character from the children's book series "The Penderwicks" by Jeanne Birdsall. She is known for her strong-willed and headstrong personality, which can come off as bratty at times, particularly when she feels misunderstood or is seeking attention. Her antics often stem from her desire to assert herself and be recognized within her family. Despite her bratty behavior, Turtle is a lovable character who shows growth throughout the series.