Isabel Mary Mitchell MBE (1893–1973)[1] was an Australian known for her services to literature.
"[3] She wrote eight novels after losing her sight through the use of dictaphone and typewriter.
[4] Mitchell also wrote three detective novels[1] under the name Josephine Plain.
[5] The Secret of the Sandbank was first published in the Melbourne afternoon daily newspaper The Herald in instalments.
[6] Mitchell was made a Member of the Order of the British Empire in 1970 for service to literature.