As Sure As The Dawn by Francine Rivers

A battle-scarred former gladiator returns to his homeland to claim the son he never knew, only to find the child being raised by a woman whose quiet faith and the compassion of a nascent Christian community challenge his warrior instincts. Torn between tribal honor and an emerging belief in forgiveness and sacrificial love, he must confront his violent past, redefine what it means to be a father, and choose a path that leads to redemption and spiritual transformation.

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