Lash was regarded as one of the most promising young people among England's artists at the time.
In the mid-1950s, she met the lyric poet and gallery owner Iris Birtwistle in Churt, Surrey, where they were both living.
Birtwistle renamed Lash "Jini" and introduced her to her future husband Mark Fiennes,[5][6] whom she married in 1962,[7][8] the year in which her second book The Climate of Belief was published.
The family frequently moved and lived in Suffolk, Wiltshire, Ireland and London.
Lash wrote four more novels over the next 20 years: The Prism (1963), Get Down There and Die (1977), The Dust Collector (1979) and From May to October (1980).