"I know that," Rean said as he checked the robot again. "Yep, it is absolutely not here. I left a concealing formation here back then, and it is still active. Somehow, someone took the core away without damaging the formation."
Romario thought for a moment. "Was it a high-level formation?"
Rean shook his head in response. "Not really. My cultivation wasn't that high to start with back then. Besides, I didn't think it was necessary for the formation I left here to be anything that grand. A good Formations Master should be able to pass through and leave without breaking it."
