Warlord Chronicles: 3 - Excalibur

the long version

Guinevere has betrayed Arthur and left a wound deeper than any spear thrust while the Saxons now scent his weakness and plan to destroy him and all his dreams. Even if Arthur survives there are other forces that want to plunge Britain into chaos. Merlin is weaving powerful spells, and Nimue will use the magic to summon the ancient Gods back to Britain. Excalibur finishes Arthur's story, telling of his greatest triumph, his greatest danger, and the last enchantment.