Realizing the danger they were in, Skye started speeding up even more. Gravis had said that they would be safe as soon as they reached the building on the horizon. Gravis was not part of the Heaven Sect yet, and the guilds could still kill him without punishment, for now. Everyone was outside of the Heaven Sect's property, and they surely wouldn't dare to do anything as soon as Gravis reached the building.
The person in the Spirit Forming Realm, down below, was a new disciple that had recently broken through. If he managed to kill Gravis, he would receive a lot of Energy Stones, and that would help him when he would eventually go to the Lightning Sect in the Core-Continent. Even if another person managed to kill Gravis, he would still get at least 50% of the eventual earnings because he held down the fort in front of the Heaven Sect.