Books in the Book of Orenck series

After years of neglect from its cruel and unstable king, the kingdom of Orenck is on the verge of collapse. Conspirators from within plot the king's overthrow while neighboring countries prepare to invade. In the midst of this turmoil petty thief, Shankla, is mistaken for the king. Can he escape assassination, save his country from invasion, and solve the mystery that fate has written in his own image?