Ainz eventually took his first mission from Bruce, and left the outer circle to the appointed place that was written about the magical beasts.
However, he couldn't stop thinking about his decision about not revealing anything to his mother and Bruce, one of the reasons why he chose not to tell them was because if he told them, they might stand against him when it was time to fight the outer circle.
It sounded illogical, but it was the truth, by that time he would no longer be seen as Ainz but as an old monster that had taken over the body of a child, and wanted to destroy the inner circle.
These were the thoughts in his mind, at this moment he could not help but look around him, the place was supposed to be the nest of the magical beasts he had come to clear, however, at this moment it was completely empty, as a mass of black shadow had devoured them, this mass of black shadow seemed to be connected with his own shadow.
