After reaching the Red Line and taking a short break, the Straw Hat Pirates began exploring the seabed using the shark submersible.
While the Marines could freely enter the New World by passing through the World Government's official sea routes, pirates had no choice but to dive deep into the ocean and find Fish-Man Island. This was because the island sat right in a gap within the Red Line, serving as a direct gateway to the New World.
As the submersible descended further, sea beasts continuously swarmed around them, attempting to swallow them whole. However, Xiaohu used lightning spells from inside the submarine to electrocute and stun them all. Even so, once the craft reached a depth of about five to six thousand meters, alarm bells began to wail.
Chapter 52