Mary Stewart was one of the 20th century's bestselling and best-loved novelists. She was born in Sunderland, County Durham in 1916, but lived for most of her life in Scotland, a source of much inspiration for her writing.

Her first novel, Madam, Will You Talk? was published in 1955 and marked the beginning of a long and acclaimed writing career.

In 1971 she was awarded the International PEN Association's Frederick Niven Prize for The Crystal Cave, and in 1974 the Scottish Arts Council Award for one of her children's books, Ludo and the Star Horse. She was married to the Scottish geologist Frederick Stewart, and died in 2014.