Unsettled

Family Secrets. A genealogical quest takes Van back 100 years to the Iowa prairie in search of an ancestor no one has claimed.
As Van Reinhardt clears out her father's belongings, she comes across a request penned by her father prior to his death. Examining the family portrait of her German immigrant ancestors that he has left her, Van's curiosity grows about one of the children portrayed there.
Meanwhile in the 1870s, Kate is a German immigrant newly arrived in America with only her brother as family. When she and her brother split, she eventually finds her way back to him, but with a secret.
Van revisits the town and the farm of her ancestors to discover calamitous events in probate records, farm auction lists, asylum records and lurid obituaries, hinting at a history far more complex and tumultuous than she had expected. But the mystery remains, until she changes upon a small book - sized for a pocket ? that holds Tante Kate's secret and provides the missing piece.