Walenty Potocki was a young Polish nobleman who abandoned wealth, power, and unlimited worldly prospects to convert to new religion - Judaism. Potocki was betrayed by a member of the religious community he embraced and burned at the stake by the Church he left behind in 1749. This book examines eleven versions of this remarkable man's story and the heated, previously unpublished, correspondence between the Potocki clan and one of his early biographers. Noble Soul is the record of one man's defining faith, and of the compelling human need for personal spiritual fulfillment.