The story is told from the time when Gawen, heir to the royal line, secured the sanctity of Avalon and established it as a sacred place, through to Helen, Briti... » 

The story is told from the time when Gawen, heir to the royal line, secured the sanctity of Avalon and established it as a sacred place, through to Helen, British princess, and finally of Viviane, who herself must face a new invader and a new danger to Avalon. «