The Element Warriors (book 1)

Once upon a time, there lived five kingdoms. Water. Fire. Earth. Air and Darkness. In those kingdoms lived five rulers, each of their own element. The world was peaceful, the kingdoms were friendly with each other and they helped each other from time to time. But one day the ruler of Darkness got jealous as the other elements were getting more recognition than her and most kingdoms were afraid of her so she decided to make an army and destroy the other elements so Darkness was all that was left. The war went on for years and the world was being slowly destroyed until a new ruler came, an even more powerful being who controlled all the elements. He defeated the Darkness kingdom and everyone in it and banished them underground but he was soon proved too dangerous to live so the rulers came together and killed him. The rulers also made a deal where they what put a wall up to divide the four elements so nothing like this could happen again. The end. Or so they thought.

Boring is one word to describe Hazel's life, she lives within the earth element wall with the rest of her family. All she's ever wanted was to go out of those walls, there was a whole other world out there that she wanted to explore but there was no way out. Her home was like a prison, and she was determined to escape. One day, something strange happens and Rosie finds herself on the adventure of a lifetime. But it's dangerous, will she make it out alive?