The Mysterious Soul Signature

Ace, in stealth, was also shocked when he heard the massive explosion. When he looked behind, he saw the dark explosion cloud rising on the horizon. 

'It's probably deadly for even golden river core realm cultivator.' Ace mused with a hint of gloating. 

It would be nothing but good news for him if that mysterious guy had blown into smithereens. Because from start to finish in their short encounter, Ace never felt he was at a real advantage. Instead, he was feeling apprehensive of the other party despite its cultivation being at the Platinum Soul River Core Realm's peak. 

Not only that, but Ace also noticed another strange thing. He felt the soul signature of that person familiar as if he had come in contact with it somewhere. But at the same time, he felt a new soul signature from it.