Ilurks

In chapter 30, a group of alien forces from a hidden dimension came to Earth where they nearly destroyed it and almost defeated everyone until the Elite Force manage to destroy their power units disabling their technology and sending them back home. This group of alien creatures created their technology around the time Earth was created and is often called the inventors of the technology that has since been traded throughout the universe. They are seen throughout the book as soldiers often being controlled by a huge indestructible ship that floats in a pocket dimension. Their ship serves as the one source of power that connects them to their home world. Akendria is said to be a rocky mountainous range of metal like structures surrounded by giant towers that powers their ship anywhere in the known Universe.