"Umbra, will you stop looking at me like that, if you want to do something, return the materials to the Hidden Paradise, will you?"
He didn't like how Umbra looked at him because he expressed his guilt to Shane which was something his companion shouldn't feel right now.
Rather, he should motivate Shane to stand up, because their current situation hadn't improved even after the Air chanter panther was dead.
The commotion they had caused was too loud, to put it nicely and it was obvious that some beasts would be attracted to them further exposing them to more dangers.
As such, instead of Umbra worrying about him, Shane wanted him to retain a calm head.
He believed making Umbra do something rather than sit idle would distract and calm him down. Thus, he asked Umbra to return the materials Talia and the others had thrown out of the Hidden Paradise in order to save his life.
