Xasha sighed casually. He never trusted Vaz in the first place. There was a way to enter the palace without fighting a small army of guards and took it. He had Vaz perform this tour to take the time to scan the building with his perception. Thanks to Irine, his aura was seriously damaged and couldn't spread as far or as wide as it could before. He will have to retrain it again from scratch.
Auras are like high-pressure tanks. Once it breaks, all the energy will leak out. One must patch it up and refill it. The recovery of one's aura is easier said than done. Xasha had knowledge and resources, but it will still take a long time to recover.
This didn't matter much because Ari and Megan were both here and scanning the place. Their perception wasn't as powerful as his before he got hurt. After all, they were not feeding their brains Imperial Diamonds like candy. But they were powerful enough compared to others at similar cultivation.