Zhang Tie only stayed in the Castle of Black Iron for less than two hours. The first thing he did after leaving was to find a dagger and cut a 2-cm long shallow wound on his left index finger like how he might get hurt when carelessly peeling a fruit. When he moved his dagger away, crimson blood started to flow out his finger.
Having long gotten used to being torn into pieces by a pack of wild wolves in the Trouble-Reappearance Situations, Zhang Tie certainly didn't fear this little pain. He put the bleeding finger under the lamplight in the room to carefully watch it without even blinking.
