The room was messy after the battle. After throwing the autumn-frost gold sword into Castle of Black Iron, Zhang Tie had started to clean the battlefield. Only after 2 minutes, he had already collected all the valuables of the 4 corpses and thrown them into Castle of Black Iron without authentication.
After that, Zhang Tie looked around and caught sight of a leather trunk as large as a luggage carrier on the side of the sofa where the LV 13 powerhouse had just sat.
Zhang Tie walked over there and lifted that trunk. He found it was heavy. Therefore, he unzipped the trunk as he saw a safe-like black rectangular metal container inside it. There was a locked lid on the metal container. At the sight of it, Zhang Tie remembered the weird key that he had gotten from Tharant's corpse. Therefore, he found out that key once again...
With a "click" sound, the metal container was unlocked. Zhang Tie then opened its lid.
