Retaliation!

Thunder God Island, deep within a valley.

"Hey, Caesar... didn't you say this was an uninhabited island?"

"Then what the hell is that?!"

Looking at the building rising from the base of a cliff, as though embedded within a rocky fault line, Sanji raised one of his curled brows.

Caesar also stared ahead in shock, rubbing his eyes in disbelief.

"Impossible!"

"If anyone lived here, they would have been discovered long ago when Akainu and Aokiji fought over the position of Fleet Admiral! This is Thunder God Island! Before it became like this, it was an utterly barren land!"

"Unless..."

Suddenly, Caesar thought of a possibility.

"Unless someone deliberately built this place after the Marines withdrew, using it to hide some unspeakable purpose!"

"This feels like we've stumbled into a huge mess. What should we do, Captain?"

Zoro rested his left elbow on the sword at his waist and pointed at the bloodstains on the ground.

"Should we go in?"

"The blood is still fresh. Could it have been left by that intelligence agent who escaped? But who wounded him?"

Robin crouched down and rubbed the traces between her fingers, surveying the surroundings.

"The valley's terrain cleverly created a safe zone surrounded by fire, frost, and lightning. If he had been caught in a natural disaster, why was there nothing along the way, only here?"

"I see, I see..."

Luffy held his chin, wearing an expression that said he understood everything.

"Anyway, let's go inside and take a look. We still have to stay here for three days!"

Everyone: "..."

No, I'd bet this guy didn't understand a thing!!!

The building appeared uninhabited, and the door handle was covered in dust.

When they pushed open the creaking door, a vast hall came into view.

"Looks like the owner was pretty