(Important history as to why there is war) Geography and world is setup by God in a way that 8 islands are surrounding a giant one. A race comes to power as a big Kingdom, claiming that God set their race in the middle to be the most important; to rule the others. Plot: A world exists in a portal to another island that was supposed to be in the original world. People that live there are free from the grasps of the central Kingdom (yes that's the kingdom's name). Eventually, the Kingdom finds out about this society and how the people there are about to launch a massive attack. So they send monsters into the world and destroy the portal. The portal is fractioned into 9 pieces, one for each island. A young adult who happens to be a psychopath, along with 3 of the only 6 mages in the world come together to find the piece on the island that they're on, all whilst the events in the book cover topics on morality, egoism, pyschopathy, and etc. So, has something along the lines of my plot been used before?