"Ah!"
A long, melodic moan escaped from Tesh's lips as she suddenly felt a presence enter her.
It wasn't anything like before or anything she'd felt before.
Not like when she accidentally swallowed a fly, not when she was forced to drink a beer she hated the taste of, not even when Theo fed her what she thought to be that hateful drug or just recently, back when her master gradually dismantled the whole of her cultivation.
This time was simply different, more… profound?
Feeling this foreign energy was now all the more easier, with no energy Tesh could call her own to obscure her sense of it.
The feeling of weirdness lasted only for the short moment it took Theo to alter the formation, inducing a powerful current of mana to start feeding into the void. And just like a raging current clashing into the piston of a water engine, the mana from the formation started to accelerate the foreign mana from before.