Or not, that wouldn't make any sense. He was human.
Redthorn was seen by some people and he was definitely a red goblin, not a human.
But he was involved in one way or another. And he had to find out where he stood in all this.
Actually, regardless of that, he was only confident in himself, after spying on Ilundar no matter what he found out, and before confronting Redthorn he was going to advance and become a True mage.
Esdras waited and waited but he wasn't having a good time, although the mana required to use the Spy eyes was not much, it increased with the distance between him and the eye.
And after a few hours, he was drained of focus and mana with nothing to show for it. But he had to endure, he didn't know when Ilundar was going to show up or if he will as a matter of fact.
He took out two potions, one was a mana potion and the other was a stamina potion.