398 I've Seen You In The Void World Before

At this thought, Su Jingxing's Essence Soul retracted its gaze and released its perception to cover the entire imperial palace.

Nian Shuang and Nian Ling'er's special auras were clearly within its perception range.

"What are these two doing back at Chengtian Palace?"

Su Jingxing's Essence Soul thought to itself.

Nian Shuang and Nian Ling'er must have an important reason for returning to the capital.

Are they spying on the Chengtian Palace to get the treasure that triggered the defensive barrier in the secret underground chamber?

Nian Shuang and Nian Ling'er had missed this treasure when they came previously.

They only realized that it wasn't taken away when it was activated.

There was no mistaking it. These two people had returned after obtaining the stone slab and the Heavenly Star Disk. Their target was definitely the treasure that triggered the defensive barrier.