Two businessmen/brothers announce plans for a theme park to glorify Ballarat's goldrush past, with assistance from their sister. The following morning one brother is found dead in the local baths. She wanted a park like Disneyland, while one brother wanted the area preserved, like it was in his boyhood. He killed his own brother in the stream, and moved his body to the swimming pool, proved by matching the water in the lungs to the water in the stream. Chief Superintendent Frank Carlyle replaces Lawson. Mattie O'Brien leaves Ballarat for a new post at St Bartholomew's hospital, London. Blake borrows Jean's engagement ring from her first marriage to have his mother's engagement ring resized.