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When the captain's order was given out to the lowest portion of the iron ship, dried wood was compressed to become a standard one-foot square through a hydraulic machine and was glued together with grease that choresmen neatly arranged together using a special long saber. It was then sent into the steam turbine piece by piece to be ignited. At once, it instantly emitted a scorching hot fire.

The heat released from the wood on the Hellfire Archipelago was far more than that of coke from Earth. The liquid in the turbine was not ordinary, clean water, instead, it was a special liquid formed by distilling the beast's grease and blood plasma and then mixing it together with the underground river water. The temperature needed to change it into steam was over 1000 degrees Celsius. The kinetic energy produced by such steam was much larger than that of pure water vapor.