Ether can weakly sense the signal coming from a booth high up in the stands.  If he follows the signal to the source, he sees a woman with light blue skin and a blue and purple outfit sitting watching the fight through a large paned window.  With her are two beefy looking guards and a man in a cloak who pushes buttons on a high-tech gauntlet, which seems to be the source of the signal.  She is the pirate queen Nebula and she rules the planet.