The Tessellation Saga, book three. MeGath

King Ramis of Boetesh has been overthrown and along with his daughter has vanished without trace, believed murdered. The new king has introduced slavery, corruption and murder, all hidden under a gentle and loving persona. The corruption spreads like a disease spilling avarice and greed across borders and threatening the peace of the world as he attempts repeatedly to gain access to the void and the power he believes should be his.
After a series of dreams, a bored young Lyreshian prince begs a mission from his father, as a spy, alone and without the proper training or equipment; he follows his heart into Boetesh the most dangerous country on Arotia.
The balance of magic has changed causing it to fail regularly and become unstable, the roots of magic are sickening and the barrier of the void is becoming increasing thin. On a planet where magic is at the heart of everything, this is a disaster waiting to happen.
Into this world, Gideon Green and his party arrive, tired, hungry and relieved to be away from earth and the monster that was King Gath, he must continue his quest and attempt to find the heart of the mystery that makes him, 'The One,' as foretold in prophecy.