This introduction tracks the origin and progress of the Ern Malley Hoax beginning with the letters sent to Harris by Malley's sister, 'Ethel Malley', through the media discovery of the deception, the trial on indecency charges and the response to the hoax from the United Kingdom and the USA. Harris provides a summary of the trial in which he was charged with having published fourteen 'indecent advertisements'. (Seven of the fourteen were from The Darkening Ecliptic; the others included the Peter Cowan short story, 'The Fence'.) Also included are extracts from an ABC radio documentary by John Thompson, entitled The Ern Malley Story (1960).