Career
Østergaard trained as a teacher. He has been living in Horten in Norway since 1982. Østergaard debuted using the name Aust as a novelist in 1999.
Prior to this, he had written the script for a historically based cartoon on the slave ship Fredensborg.
He has written several historical crime novels based on Denmark–Norway around the beginning of 18th century. Main characters in these novels are Professor Thomas af Boueberg of Copenhagen University and his Doctor Watson equivalent, the considerably less brilliant Norwegian Petter Hortten.
Den store kaosdagen (Kasper & Måns The Great Day of Chaos). Kurt Østergaard is married to the artist Kin Wessel (Ann-Carin Wessel).
Den store kaosdagen.