This is a charming book, full of dragons and other magical creatures, villains and danger for the heroine, bravery and my favorite theme: good vs. evil.
Christopher (who we apparently met in Book #1, which I have not read yet) receives a message from a tiny dragon that the dragons in the Archipelago are dying, and no one knows why. Christopher has been summoned through the waybetween to the Archipelago to save them.
In the meantime, Anya is a princess of Dousha, an island at the south of the Archipelago. Her grandfather is king, but until she and her father were summoned to live at the castle, they lived in the forest, friends with the gaganas (magical birds) and tending the plants that her father loved. But her father is next in line to the throne, and has therefore been summoned, so they must go. Anya doesn't enjoy dressing up and minding her manners, but she must, until her world is upended and she flees, saved just in time by Christopher on a flying ... sphinx??
Thus begin the dual adventures of Christopher and Anya as they try to stop the dire events in the castle while at the same time, finding a cure for the dying dragons of the Archipelago.
There is all the adventure one could wish for in a book apparently written for children, but which I thoroughly enjoyed. For me, it was very much a cross between Harry Potter and "The Princess Bride" -- so it was everything I could hope for in a fantasy! I will happily read "Impossible Creatures" to learn Christopher's back story. 5 full stars.