Wicked King Casmir cannot control Madouc, the wild and willful
changeling secretly switched at birth with Prince Dhrun, rightful
heir to the throne. So Casmir ordains a quest: whosoever brings him
the Holy Grail will have Madouc for his bride. But the fairy-born
princess chooses to decide her own fate, and sets out with a stable
boy to find the grail herself. Meanwhile, a spiteful wizard seeks to
undo the spell that prevents the war-torn Elder Isles from sinking
into the sea.
The third volume in Grandmaster Jack Vance’s Lyonesse trilogy brings
the epic tale of the Elder Isles to its magnificent and melancholy
conclusion. Madouc won the World Fantasy Award for best novel.