章 997: Ye Ling is Rich. Let Him Pay 2

Mu Yuan did not feel bad either.

As long as the members were safe.

"Major, this time, we did not discover any useful resources."

"It's fine."

There was a flaw in Ye Tingyun's drone. That was, it could not receive information outside a distance of 10 km. The closer it was, the stronger the signal would be. The current technology had not developed to a stage where the drone could be controlled. When Black Rose monitored Rose Castle back then, she was also within 10 km from the place.

They could not capture any useful images either.

Due to the weather, Xie Jinghuan's drone could not fly in either, but he managed to get the electricity usage and the thermal map.

"Based on this power usage, the popularity is over 500," Mu Yuan said.

The thermal map also showed that they were all around the first building.