Davis left his soul body here to monitor the situation before he explored the mini-realm, making sure that there were no inhabitants since he decided to sacrifice it to the Voidslime Realm Eater.
The twelve cultivators were all near the Voidslime Realm Eater, having been completely enamored by its predatory gaze, so there was nothing to worry about.
He did find a few treasures, but they were all Immortal Grade, so he didn't cast a second glance at it.
There was not a single Immortal King Grade ingredient to be found, and considering the heaven and earth energy here was abysmal, he could understand why.
Clearly, this mini-realm was abandoned for a reason. It was desolate.