The YellowFeather Chronicles Book1: Blood and the Sea

A young boy named Jay is going to have a hard time from now on. As a Southern Elf prince, he has to work extra hard to keep his father's Kingdom in order. Fights break out, Northern Elves attack, but is it too much to ask for simple peace?
All Jay wants is for the Northern and Southern kingdoms to get along, and whilst Jay works on this, he makes some new friends.
Elthris, Jay, Savy, and Noah are all Elven Heirs, but there is something different about them... They are Masters. FireMasters, WindMasters, EarthMasters, and RiverMasters.
These four teens must work together to keep their kingdoms from fighting in the bloodiest battle of Elven history. But, in the end, one of these Elven heirs must stand out. Only one may live, even if the four teens must fight to the death to see whom will survive.