There once was a time when dreaming existed in everyone. A person would have as much as five dreams a night or as little as zero. Slowly, dreams became more and more rare. Eventually, only children began to have dreams. Out of all those children, only five had dreams. One of them was Asteria.
Having dreams was a gift. If you were one of the dreamers, you could think of a question all day and then receive the answer through a dream at night. Many wanted the power, but of all, the Evil Riders wanted them the most. They travel by horse, searching for dreamers. If they couldn't dream, no one could. Their mission is to kill off all the dreamers and if they couldn't kill them, they would try to extract the dreaming abilities from them.