This work may have been written by A. C. Watkins (q.v.), however, Loder and Flanagan list it as being by the pseudonymous author 'Jason' who, Flanagan asserts, was G. Stannus and Hugh Munro (qq.v.).
(Source: Loder, Australian Crime Fiction : A Bibliography 1857-1993,1994; Flanagan, The Australian Vintage Paperback Guide, 1994)