The sudden disappearance of Cerberus was not something that Qin Ruo had expected. Nevertheless, it was not a bad thing at the same time as it possibly implied the parameters of the monster's teleportation.
Since Qin Ruo now knew that the guardian of the entrance to the Underworld, Cerberus had the ability to temporarily teleport to the Dimensional Portal, he would risk his life to go anywhere near the golden treasure chest anymore.
Since the warriors from Netherspirit's Claw were not able to immediately open the treasure chest, it proved that the treasure chest was also another challenge to overcome. Without the Lockpicking skills of a Bandit, there was no way to obtain the treasure inside.
However, Qin Ruo was not discouraged because he did not believe that there would only be one treasure chest in such a large cavern.
