After getting the last hit on the king tier beast and completing the quest. There wasn't much time for Quinn to check out the rewards, or see what he had obtained.
There was the problem with Fex, and shortly after the travellers appeared as well.
It seemed like the group was having problem after problem occur. Soon after seeing the travellers, he knew instantly how they would react to the seeing Fex. It was hard for them to even explain themselves out of the situation, since Fex was currently attacking them as well.
However, Quinn felt like he had a way to solve their current issue only he didn't have much time to act. During the fight with the king tier beast, he hadn't done this action because they needed Fex in his blood sucker form. But Quinn still had the flask that Fex had given him.
