Here's a brief overview form the book:
Far north and west of mainland Théah lie the Glamour Isles, the United Kingdoms of Avalon. Three crowns linked by a single destiny and duty, Avalon is a place of mystery and fantastic reality. Visitors to the isles always remember how the dew makes the grass shine like emeralds, how the cottonwhite clouds stretch across the cobalt-blue sky and how the forests are tall, dark and menacing. As its visitors suggest, Avalon could very well be a living færie tale. If you ask the Avalons, they smile, wink and remind you not to walk alone at night—not without an iron cross around your neck or a four-leaf clover in your pocket.
What Théans colloquially refer to as “Avalon” is actually three island kingdoms: Avalon, Inismore and the Highland Marches. Each island has its own peculiarities.
Avalon itself is not particularly mountainous, but has its share of rolling hills, glens, moors and marshes. The islands see a good deal of precipitation and the intense rain and warm weather make for good crops. Morning and evening in Avalon are always covered with a thick fog that seems to linger all through the night, a fog that even the chilly ocean winds never blow away.
The main island and capital of the three Kingdoms is the island of Avalon, ruled by Queen Elaine, keeper of the Sacred Graal. Both Inismore and the Highland
Marches have sworn fealty to her crown.
But humans aren’t the only residents of Avalon. The Sidhe (SHEE), an ancient and powerful race, also reside there. Long ago, the Sidhe made a sacrifice granting the inhabitants of the isles the magic
of Glamour: the ability to summon the power of legends. Both humans and Sidhe have this power, but only if they make a sacred vow to protect Avalon from enemies without and enemies within.
While the island kingdoms are technically united, political tensions still exist. For centuries, Avalon monarchs exploited both Inismore and the Marches, subjugating the people under an iron boot. But then,
out of the chaos of civil war, Elaine arose, bearing the Graal. But how did she get it? Who gave it to her? And is she truly worthy of bearing it and the crown?
Only time will tell.
Meanwhile, the King of Inismore, Jack O’Bannon, may be an immortal demi-god or may be insane. Or, he may be both. He has sworn fealty to Elaine so long as she stays true to Avalon. And in the north, the King
of the Highland Marches, James MacDuff, has also sworn fealty to Elaine, but many wonder if his own desires eclipse his concern for his people.