"Olavi Auduninpoika" by Sigrid Undset is a tetralogy written between 1925 and 1927. Set in medieval Norway during the Civil War era, it follows Olav, a deeply pious man tormented by an unconfessed sin: he secretly killed his wife's lover. Unable to confess without exposing his beloved wife's infidelity and her son's illegitimacy, Olav feels cut off from God's grace. The series explores guilt, honor, and spiritual anguish against the backdrop of medieval Catholic Church institutions. (This is an automatically generated summary.)
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