This post explains how that land in Amerouk is cursed. ( I hope I put this in the right place.) 
The Curse:The Cause of the Curse:The curse was cast by King Dakai’s death. The rebellion had made a surprise attack, and it injured the King greatly. But defeating the world’s most powerful dark magician isn't easy. Once Dakai realized that he was overpowered, he used the remainder of his energy to curse the people of Amerouk. This is what killed him. 
The Curse itself:King Dakai cursed the north people with gloom, and the south with happiness. But when the king cast the curse, he did not make it apply to the royal family so that his son would be able to rule with the same power he had. Also, since King Dakai was already weak when he cast the curse, he did not have enough energy to make it apply to the special magicians who are can manipulate elements, and their ties with nature protected them. Their ties also protected the specially gifted magician’s immediate families.  And any of people who were on any of the islands of the coast of the mainland were not effected. 
The Curse’s effect:The Curse has a slightly different effect on everyone. For example, some people in the south may be only mildly happy, and can still focus other emotions with concentration, while others may be dancing in the streets, singing happy songs. As for the people in the north, it is the same thing with gloom. 
Any thoughts, comments, and suggestions are welcome. And thank you, dear Philadelphia, for helping me develop the curse.   
