Betrayed

The only way one could discover this mist is if they were to already know about this location beforehand or that an Early Stage Heavenly Venerate with a profound divine sense intensely studied this tree for days. 

Cain already knew what to do from Yan Kui's instructions. With his and the girls' bodies engulfed in Chaos Energy, they were able to phase their hands straight into the divine mist and touch the Dao runes. 

Space essence energy instantly flowed out of the Dao rune upon first contact. The sensation of space completely warped around the trio as they allowed themselves to be engulfed. 

Under the noses of thousands of other cultivators, the trio was silently sucked straight into this Dao portal disguised as an average tree! 

... 

The trio were instantly teleported through a long distance, through numerous distances within the void space.