The gateway into and out of Castle of Black Iron?
The stars of the Soul Tribulation Realm?
Heller's words made Zhang Tie freeze slightly before he immediately understood what Heller meant.
Zhang Tie suddenly remembered that ever since he had eaten his first Soul Tribulation Fruit, every time he ate another one, a hexagram representing a newly created Soul Tribulation Realm seemed to appear upon the archway leading into and out of Castle of Black Iron, hidden within his Sea of Consciousness.
The first time he saw the hexagram representing the Soul Tribulation Realm appear on that Mysterious Archway, Zhang Tie had found it miraculous. But over the past decade or so, as he ate more and more Soul Tribulation Fruits, and as his spiritual energy grew increasingly powerful, entering and leaving Castle of Black Iron became as easy as breathing. Zhang Tie had gradually forgotten about it.
Heller's words reminded Zhang Tie. He hurriedly examined the Mysterious Archway leading into and out of Castle of Black Iron within his Sea of Consciousness.
Just as when he had first seen it, that ancient yet magnificent archway still lay hidden in the deepest reaches of his Sea of Consciousness, as quiet as ever, seemingly waiting at all times to welcome Zhang Tie's arrival. Yet unlike the first time he saw it, more than ninety-five percent of the front of the Mysterious Archway was now covered in hexagram patterns. These hexagram patterns complemented one another, harmonious and profound, making the Mysterious Archway seem even more sacred and mysterious.
Zhang Tie looked carefully. Aside from a small patch above the gateway that had yet to be filled by those hexagram patterns, the front of the entire archway could no longer accommodate any more Soul Tribulation Realms.
What about the back and sides of