Aithos Christian Epic Fantasy

Left with few options, Magnate Rivia has placed all his hope in the hands of an invalid and one foolish expedition. One hopes to prove the world of Aithos to be a globe to free his father from imprisonment. The other hopes to find the promised land of his father's dreams and save his land from the curse ravaging it. Should the invalid fail, then his father shall rot away as a dishonored heretic. Should the expedition fail Magnate Rivia will be forced to trigger the gears of rebellion. A leader must serve thy people, but for Magnate Rivia, will that service come in the form of a new promised land or at the end of a blade?