The Dragonslayer — Brendan Carroll

The venerable Chevalier du Morte must travel to the Underworld to rescue his beloved Meredith after she and the Order's Mystic Healer are imprisoned by an ancient sorcerer with mysterious ties to Mark Ramsay. While he is battling evil forces on the astral plane, his son becomes a member of the Immortal Council of Twelve. One foe is vanquished and another awakened.