Smoke filled the sky above the open sea.
The mechanical Leviathan, its defensive barrier gone, let out a piercing grind of gears.
Scalding air blasted from every ventilation valve beneath its thick armor plates.
The two redstone cores inside its eye sockets flared, blinking faster and faster.
The heavy armor on the front of its chest split apart, revealing a dark red cannon barrel more than a hundred meters across.
Crimson light gathered rapidly at the muzzle. The heat was so intense that the nearby seawater began to bubble.
In the underground control room, the alarm sounded again.
JARVIS's electronic voice followed.
"Warning. The target is charging beyond its operating limit."
"Core output has reached the critical threshold. Estimated time until its superheavy laser main cannon fires: three seconds."
Tony stared at the energy readings on the screen and swore.
"Those brainless antiques can't win, so they're going to take everyone down with them?"
"If that main cannon goes off, the whole ecosystem off Wano Country is finished!"
Luffy leaned over the railing and shouted.
"Kahn! Look, its belly's turning red! It must be cooked through!"
Ace grabbed Luffy's head and pushed him back.
"That's a cannon charging up, not dinner cooking!"
Sabo tightened his grip on his iron pipe and looked toward the leader on the sofa.
Kahn gently set his teacup on the table.
Porcelain tapped against the tabletop with a clear chink.
"You think you can afford to wreck my prize?"
Kahn gave a cold snort.
A blast of air erupted through the underground workshop.
Only a ring of turbulent air remained where Kahn had been sitting. He was already gone.
The next instant, ten thousand meters above the sea.
The howling sea wind suddenly fell still.
Kahn stood in midair, his black coat snapping in the