The River by Starlight — Ellen Notbohm

Moving away from unsettling pasts and thrown together by circumstance, Montana homesteaders Annie Rushton and Adam Fielding are bound by a potent chemistry they don't recognize as love. Against a backdrop of economic boom and bust, catastrophic climate events and war, they marry hopefully and prosper but briefly, overtaken by personal and natural disaster dominated by Annie's episodic post-partum psychosis. One will meet the challenge with unforgettable resilience. One will be broken by it.
Despite iron nerve and determination, Annie's periods of depthless depression and violent episodes shatter her life and extract a terrible price. As the town she calls home turns against her, her allies and options are few, forcing her into the only treatment available: involuntary commitment to the State Hospital for the insane. From there, Annie begins her tenacious quest for control over her destiny as a woman, mother, and lover. A century-old story as relevant as ever to women today, The River by Starlight reaches across the years with a compelling message for our own time: that healing and reconciliation can emerge from devastating emotional and financial wreckage.