White Star - Book 2 of The Making of a Mage King Series. The Making of a Mage King series, #3

Sean's crown was firmly in his hands, and his new bride and oldest friends managed the business of running the kingdom. The only trouble with this picture was that the entire rest of the country didn't have a clue. In order to be his own king, rather than a shadow sitting on his uncle's throne, he had to go to each district and tie the country together again. His uncle had had seventeen years to divide the districts and cow everyone through fear and torture.
All that was done; he just had to tell everyone that fact. Now that Sean was in motion, he was positively driven and had to force himself to a pace that preserved the health and endurance of his troops. Once again, he picked a likely route that would take him around the entire country in the shortest amount of time, but even so, the distances he had to travel between each district seat left next to no time to achieve what he needed to do and each district presented its own problems.
Along the way, the troubles and problems began to add up. A country divided is a country at risk and the risks had been happening. The problems he found boggled the mind. In one district, a mage had found a way to double the harvests by speeding up the passing of the seasons, trouble is, the magic affected everything and everyone in the valley. Girls were growing up and having babies at the age of seven or eight, and few of them were surviving the ordeal.
This went for the animals as well. In another district someone had been kidnapping young mages and spiriting them away.