Newsweek described her novels as 'the best whodunits ever written'. Marsh was also an artist, playwright, actor and director. The New York Times called her New Zealand's best-known literary figure.
Marsh, regarded as one of 'Queens of Crime' in the 1920s and 1930s, died just weeks after submitting her 32nd detective novel, Light thickens, to publishers.She was also known for her work as an artist, playwright, actor and director.