Heroes of Solunar: book 1: Message from the Stars

Prince Mindbreaker has wanted to save the world for his whole life. He thought he would never be able to, until the legendary dragons from ancient stories broke out from their prisons and have made their whole continent go crazy enough for them to start a war. Mind thinks he is able to stop this, but being a hero takes a lot more work than you would expect, and will take six dragons, including himself, to be able to save not only their home, but their whole continent.

(Cover will be updated if I do get the permission to use the redrawn cover)