"It's entirely dark inside there. No light beyond the entrance. Even that should not be possible." for Mordant to say this, it meant a lot. He should be able to see through the darkness and sense most things using it if need be. But he was saying he couldn't see a thing?
"I may have seen movement at the mouth of the cave. I am not sure yet, but I can't see it changing now so I don't want to say much. We should be prepared though." Walker felt that this was all he could do right this second.
Giving a warning was never a bad thing. However, he felt that this was a worse thing to say now since he was admitting that he also did not know anything. That he was not prepared to fight whatever was inside or whatever might appear before them as an opponent.
"You can see something moving in there?" Mordant was more surprised that he could not see something rather than the fact that Walker could.
Your gift is the motivation for my creation. Give me more motivation!