The True Monster

With all kinds of questions in mind, Allen stepped up to Sentomaru, grinned, and asked, "You're with Marine Headquarters' scientific unit, right? If you don't mind, can you tell me what that weapon just now was all about?"

Gulp!

Sentomaru swallowed reflexively and forced down the fear in his heart as he replied, "D-Don't dream! I'm the most tight-lipped man in the world! I'd never tell you that Dr. Vegapunk was the one who invented it!"

"Oh? So it really was Vegapunk's work." Allen wore an expression that said he had expected as much.

Sure enough, Sentomaru had not disappointed him. The moment he opened his mouth, he exposed the secret Allen wanted to know.

As for being the most tight-lipped man in the world, that was just a joke.

In truth, this guy could not keep any secret at all. He was a leak master through and through.

At this moment, Allen finally understood what "five hundred years ahead of modern technology" truly meant. He also found himself wanting to meet the greatest scientist in the One Piece World.

So without any hesitation!

He directly extracted Sentomaru's soul and found the scientific unit's secret base in his memories.

Only after finishing all that did Allen raise his head and stare at the last surviving enemy as though he were already dead. "Any last words?"

"Hahahaha! Last words? I don't need something like that! Sea Devil Allen! Just as the Five Elders believed, you truly are the greatest threat to the entire World Government. Even a weapon like that couldn't kill you. If I'm not mistaken, the last thing you used was the Barrier-Barrier Fruit's ability, right? You've eaten far more than just three Devil Fruits!"

The male Assassin laughed wildly as he revealed what he believed was Allen's greatest