Indigo Blue is a 2005 children's novel written by British author Cathy Cassidy.

The book is about a girl named Indigo and how her life changes as she, her mother and her baby sister Misti move to a new flat because of domestic violence.

[1] Indigo "Indie" Collins is an 11-year-old girl in Year Six who enjoys daydreaming.

Without much money, Indie's family have to fix up the flat and learn to survive.

After a while Indigo's mom agrees to go on a date with Max and he physically injures Indie's mother and is put on trial.