You don't simply "see" a moose this size. This is more of an experience, one that's so startling that if he hadn't been prepared by Elsword's analysis of the tracks, he would have been a lot more startled than he is already. Like, damn, that's a big moose!!

Elsword's reaction is a lot more subdued than Sesa's, who looks ready to start running if that moose decides to course correct and start plodding in their direction. It could easily flatten them both and have no clue they were ever there.

And then...!! It jumps! Into the water!! Sesa is still so captivated by all this he almost misses what Elsword says, but...of course he's going to continue down toward the glow, they can't turn back after coming this far.

"Several days? We've only been walking for at most a few hours, haven't we?"