Clack, clack—
The sound of gears turning came from beneath the walls along the harbor shore.
Each wall rose with the sound of turning gears, slowly revealing the steel walls beneath.
Maud found the clash between Whitebeard and the three admirals utterly riveting.
But the commotion caused by the rising encircling walls immediately drew his attention.
It was not just him. Everyone on the ice in the harbor could not help looking toward the encircling walls around them.
"Iron walls?!"
"What the hell are the Marines doing?"
The pirates nearby stared in astonishment at the encircling walls rumbling upward.
"We're being surrounded!"
Some of the pirates reacted quickly, directly aiming the shoulder cannons at the encircling walls.
Whoosh, whoosh, whoosh—
Three cannonballs in succession slammed into the encircling walls.
"Boom!"
The cannonballs exploded violently against the encircling walls.
As the sea breeze blew the thick smoke aside, the pirates saw that the encircling walls were completely unharmed.
"Damn it, they didn't budge!"
"Hey, look! There are gun ports in the walls!"
"This is bad! We're going to become sitting ducks!"
When the encircling walls had risen halfway, the pirates saw the gun ports lined up across them, and their expressions changed at once.
Clearly, they had vastly underestimated the firepower the Marines were about to unleash.
It was nowhere near something that a mere hundred cannons could compare with.
In the distance.
Whitebeard narrowed his eyes at the rising encircling walls.
Although the walls were still rising, from inside the harbor, the square and the execution platform standing high above it were already out of sight.
This showed that the encircling walls would ultimately rise more than a hundred meters.
"So this is your 'plan'... Strategist, Buddha Sengoku."
Whitebeard's eyes sharpened. He punched one of the encircling walls.
With the