They passed a laboratory.
The entire lab radiated terrifying heat. A special mechanism had created a blazing red Fireball, like a miniature sun.
The heat around them reached well over a thousand degrees Celsius.
Fire was hardly rare on the seas, but it remained one of their most terrifying forces.
The pain it inflicted was excruciating.
"Let me out!"
"What did we ever do wrong?"
"It's all nonsense!"
"I'll kill every last one of you!"
Hoarse screams came from inside the laboratory.
The researchers had already fled the facility. Whoever was inside was probably a World Government test subject.
The World Government's endurance tests subjected their victims to searing flames and extreme heat.
How did Kaido know? Because he had undergone experiments like this himself many times over the past year.
Curiosity piqued, Kaido shut down the apparatus and walked straight into the lab.
His footsteps caught the captive's attention. The test subject turned toward him.
"Who are you?"
"Me? I'm a Pirate."
Kaido approached.
The heat was no problem for Kaido, but the test subject before him—a mere boy, by the look of him—had endured it too.
He studied the boy strapped to the examination table.
Black wings. White hair. Brown skin.
Kaido recognized him and broke into an excited grin.
"So that's it. No wonder the World Government won't let you go!"
"You're a Lunarian."
The boy on the table frowned, unsettled at having his identity exposed.
"I saw that endurance test. To withstand flames like those, you really are—"
Before Kaido could finish, the boy struggled to sit up. His shackles held him down, and he glared furiously at the stranger.
"Really what? One of those people from legend?"
Kaido remained calm. He understood the boy's anger. After the battle at God Valley, he knew what the