The Heide mythos, which has grown from the circle that gathered around arts patrons Sunday and John Reed at their home in Victoria’s Yarra Valley, is a tantalising mix of passion, vision, heartbreak, betrayal and great art. Without the art, Heide would be merely a soap opera.

Sunday was the chief engineer of an ambitious plan to invigorate Australian culture – to get it up off its knees where it snivelled before Mother England. Her plan to vivify European modernism here worked and, its proofs are in the careers of Sidney Nolan, Joy Hester and Charles Blackman.

Reed nurtured, inspired and infuriated successive generations of artists and poets from the ’30s to the ’70s. She was sexy, devouring, uncompromising, sentimental and loyal, a princess who threw in her lot with the ratbags and never limped home to Toorak. Sunday learned from being a failure – at trying to be an artist, a good wife and a mother. She understood pain and rejection, and had no qualms about meting them out to others.

Enter Autumn Laing, the eponymous heroine of Alex Miller’s new novel, based on Reed. It’s 1991 and she is 85 years old, living alone at Old Farm amid the ghosts of the past. She’s in a rage fuelled by self-disgust at her frailties, a pesky biographer, an uncomprehending doctor and an impertinent nurse.

Autumn is writing her account of her affair with Pat Donlon and of the damage done to his wife, Edith. It’s a bruisingly moral tale. Edith, the catalyst for Autumn’s memoir, is a figure both wounded and courageous, who is counterpointed with Arthur, Autumn’s husband, an anguished and dignified man. Edith unflinchingly draws boundaries that the other characters are too egocentric or compromised to acknowledge. What price great art? Everyone, it seems, has to pay.

Miller has fun with his cast of characters and humour, while black, ripples through the narrative, leavening Autumn’s more corrosive judgements and insights. Miller engages so fully with his female characters that divisions between the sexes seem to melt away and all stand culpable, vulnerable, human on equal ground. Miller is also adept at taking abstract concepts – about art or society – and securing them in the convincing form of his complex, unpredictable characters and their vivid interior monologues.

Miller cites himself as helpless before Autumn’s demand to take centre stage while the novel he’d planned to write was about Nolan. Sunday/Autumn was an expert at telling creative folk what to do and, in this case, as in many others, she was right. Miller has triumphantly made art from her life.

Like Lovesong, Journey to the Stone Country and Landscape of Farewell, three of Miller’s finest works, Autumn Laing explores a geography of emotion – an intimate, treacherous, burning zone where redemption is gained through slow and painful self-interrogation.