Rich in historical detail, Heather Terrell's mesmerizing novel Brigid of Kildare is the story of the revolutionary Saint Brigid and the discovery of the oldest illuminated manuscript in the annals of the Church, a manuscript that contains an astonishing secret history.

Fifth-century Ireland: Brigid is Ireland's first and only female priest and bishop. Followers flock to her Kildare abbey and scriptorium. Hearing accounts of Brigid's power, the Church deems her a threat and sends Decius, a Roman priest and scribe, on a secret mission to collect proof of Brigid's heresy.

As...