They are about mainly two countries, Eddis and Attolia. There is also a third rival country, Sounis. Eddis has a Royal Thief, Eugenides (nickname Gen), and he's sexy mrgreen He's almost a mastermind in the second and third books. Sadly he gets his hand cut off by the Queen of Attolia in the second book ;_; But that almost makes him sexier.
Sexy, sexy, sexy...*cough* Wha? >_>;;;;
Here's a formal summary, stolen from my library's website, for The Thief:
"The king's scholar, the magus, believes he knows the site of an ancient treasure. To attain it for his king, he needs a skillful thief, and he selects Gen from the king's prison. The magus is interested only in the theif's abilities. What Gen is interested in is anyone's guess. Their journey toward the treasure is both dangerous and difficult, lightened only imperceptibly by the tales they tell of the old gods and goddesses. Megan Whalen Turner weaves Gen's stories and Gen's story together with style and verve in a novel that is filled with intrigue, adventure, and surprise."
Anyways, who has actually read her?