In PX45, author David Sornig discusses his recently published book 'Blue Lake'. It concerns an area adjacent the Melbourne CBD known for many years as 'Dudley Flats'. This area contained squatter camps, rubbish dumps, noxious industry and the working infrastructure of the metropolis. Originally a place of pristine beauty, hence the title of the book, the area was degraded and became 'the other', a place outside respectable Melbourne. A wonderful pseudo - geographical study of an urban area typically overlooked.