Rowan knew that as he was outside of Doom Star, the shielding over that realm that could block the gaze of the powerful was gone, and he could be easily located, but he already had plans for this, and from the moment he banished the World Stele into the Nothingness he had been fleeing towards the one place that held extreme danger for him but was also the safest place he could hide—the Third-dimensional universe.
There were many reasons why this was the best choice for him, and the two major reasons were that, unlike higher dimensional immortals who could not enter a lower realm without destroying it, Rowan could simply assimilate the universe, becoming one with it, thereby bypassing the restriction imposed on high-level beings, and the second was the aura of Oblivion that was cloaking the lower realms, this was the greatest shield against any higher dimensional being that would attempt to locate him.