The First Abyss was simply too vast. Even if every knight from Lion Fortress were brought into the First Abyss, even if all of them stood on the same plane within it and were evenly spread out, there would still be uninhabited wilderness within several hundred square kilometers around every knight.
Without the smoky beacon of knights' Battle Qi, and if knights did not expose the radiance of their Battle Qi while flying, visibility in the First Abyss would be limited to only a few kilometers.
The First Abyss was a gigantic deep well. Therefore, probabilistically speaking, unless one insisted on entering the hot zones of the First Abyss, the chances of encountering either friendly or enemy knights there were extremely low.
The hot zones of the First Abyss were areas where humans and the Devil Race fiercely contested immense interests, such as Iron Enclosure Mountain, which produced Earth Element Crystals in abundance.
Iron Enclosure Mountain was the place in the First Abyss where knightly battles were at their fiercest.
Zhang Tie and the others entered one of the First Abyss's underground passages. This was not a hot zone. At the very least, before the secret realms and hidden treasures beyond these passages became common knowledge, those deep, dark tunnels would not become lively.
The First Abyss had countless underground passages. They turned the First Abyss into a piece of cheese riddled with holes. Even today, neither the Devil Race nor the humans had explored more than a small portion of these underground passages. What lay within the rest of them, and where they led, remained a mystery.
If the Prospectors' armies on the surface could come here, this place would certainly become their favorite.
These passages and caverns were like a labyrinth brimming with treasures, concealing endless secrets and