Title: The Hour of the Elves - Jean-Louis Fetjaine - book
Summary :
The world, divided between dwarves, monsters, elves, and men, has lost its balance since the latter appropriated the legendary sword Excalibur. Torn between his wife, the Christian Ygraine, and Lliane, the queen of the elves, King Uter decided to return the sacred sword and thus restore the old order.
Then the monsters invaded the kingdom of Logres and annihilated their disunited opponents. Weakened and terrified, men turned once again to the elves, hoping that the tree people would come to their aid.
Exiled on the island of Avalon with her daughter Morgane and accompanied by the mysterious Merlin, will Queen Lliane agree, once again, to risk everything for the love of Uter?