Davis directed the flying boat towards the west where the Ivory Moon Sanctuary Lower Realm. But not even quarter-way into the journey to the Ivory Moon Sanctuary Border Town, he decided to turn around and return to the Great Desolate Plains.
He was indeed planning to go to the Lunarisse Empire's Treasury and gain more resources, but not before checking the state of the First Void Dust Sanctuary. For some reason, he couldn't shake this vague feeling that the Heaven's Warriors were planning something cruel like it was every day's work.
Davis wasn't foolish. He thought of various scenarios where he could be cornered and granted a painful death. Other than the pure might of the Celestial Transcendent, he feared that the Heaven's Warriors might find both mini realms Stella created and storm them at the same time.
In that case, it would actually make sense for them to take this long and prepare for the twin siege.