Following a commission by  Victor Gollancz Ltd to follow the California Trail and produce a book, she subsequently wrote 11 mysteries set in the American West. She wrote her last novel, Gone Feral, when she was in her 80s.
Following an assignment by Victor Gollancz Ltd to explore the California Trail and produce a book, she subsequently wrote 11 Western-themed mysteries. She finished writing her final novel, Gone Feral, at an advanced age of 80.