Full name Sidney Hobson Courtier (28 Jan 1904-1974), born in Kangaroo Flat, Victoria. Australian teacher/principal; President P.E.N. (Melbourne branch) who has written 22 mystery/detective novels with series characters Inspector "Digger" Haig and Inspector (later Superintendent) Ambrose Mahon (often ingenious, sometimes in bizarre physical settings)
Tambalin Valley, remote in the mountain country of New South Wales, was the haunt of lyrebirds fascinating because of their dancing and wonderful mimicry. The valley was also the home of quiet farming folk who loved the good life. But, beneath the peaceful surface, dangerous men and women played a desperate game, and, when schoolteacher Harry Austin found his life in peril, he appealed to his long-estranged brother, Mike, for help.