Rich Aunt Ruby is Mum's sister, Henry and Peter's aunt and the mother of Stuck-Up Steve. She is regarded as rich and often buys Steve expensive gifts for Christmas. She also lives in a rather large old house with Steve. She is often seen as quite grumpy at times. She wears a magenta suit, white shirt and magenta skirt in the TV Series. She has burgundy-magenta hair. Horrid Henry sleeps in the attic bedroom when he comes over for the weekend. She is also shown in Happy Birthday Steve.