Finister - Tethys, #2

A thief and a rich merchant's daughter. A warrior bearing the scars of a terrible tragedy. Together they hunt... Across the wide expanses of Finister races the last of the Magices, searching for the treasure that may reverse history and restore the power of those defeated by the revolution in Keaen. Against him stand a thief with unusual powers, the daughter of a rich Gaskarian merchant and a warrior from the Valley, whose life has been beset by a terrible personal tragedy.
When they finally find the treasure, it is nothing like they imagined, and it will change forever what they know about their history and the foundations of their civilization.