The Sun Prince.

THE BONDS OF KIN MUST HOLD
The King-Radiant has fallen. Zapour has been liberated and the siblings triumphant, but at what cost?
Two years have passed since their victory over the Eagles. Peace between the nations has not gone as planned. Gelvard has seized control of Lumindal and a cloud of war now surrounds Trost.
The sun is dying… A new power has risen from the west. A man who calls himself the Sun Prince has his eyes set firmly on Zapour. But is he friend or foe?
The bonds of kin will be tested as new threats arise, though not all threats are new. An ancient evil awakens, and new bonds must be forged if light is to shine another day.