The unsettling feeling only grew as they moved faster. Walker was able to pull on the light mana. But he found himself struggling slightly. Especially as he began to sense more manas around.
It was like a dark feeling. The same feeling that people would get as the shadows began to lengthen as the sun set. He knew that he could still sense mana, but he was struggling to feel it as clearly.
This wasn't because of anything wrong with him. It was the way that the manas were mixing here. The manas were not as solid because they had approached an odd border. A boundary that was full of another form of mana that he did not know as well.
Walker was able to sense all the elemental manas and various forms of fused elemental manas. Even the poison elemental mana was clear enough for him to understand to a degree. Yet here he was being caught up with a bit of confusion.
Your gift is the motivation for my creation. Give me more motivation!