As the situation with the space node stone was pretty much resolved for now, the ancestor of the Blue Sea Empire didn't continue lingering around the outer regions, as he immediately made his way back towards the Blue Sea Empire without wasting a second. Understanding that continuing to stay in the outer regions of the continent would only end up endangering him, as killed a single demonic cultivator in the Demon King Realm should have already ended up alerting some of the stronger demonic cultivators to his presence.
Luckily for him, now that he was no longer restricted by the spatial artifact that the now dead demonic cultivator had used on him, he could make full use of his comprehension of the Dao of Space to rapidly leave the area before anyone arrived to stop him.