This Is an External Combustion Engine

District 17... Theus thought for a moment, then turned to look at the map on the wall.

That was southwest of Castel, in the sea beside the volcano...

Theus let out a long breath. Monica had ultimately not been too reckless—at least falling into the sea wouldn't kill anyone.

At least, it wouldn't kill a Transcendent.

"Send an emergency team to rescue her."

"Understood."

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In the Banshee duty room of the main cathedral, several fully armed Banshees on watch rose to their feet and pulled a lever in the room. A large opening appeared in the wall.

The Banshees jumped in one after another.

Inside was an incline. The concrete surface had been polished smooth, with water flowing over it, making it extremely slippery.

After jumping in, the Banshees began sliding rapidly downward.

It was a waterslide.

Banshees could swim far faster in water than they could travel on land. This was one of their innate abilities, and the definition of being "in water" was not particularly strict.

For example, the flowing water beneath them at this moment did not even cover their snake tails, yet it still counted as "swimming in water."

In just a moment, they followed the waterslide to the sea valve and entered the ocean.

This method had only been developed recently. Come to think of it, it had been Monica's idea—she had even exploited a bug in their innate abilities...

Inspired by this, Theus planned to fill the cockpits of future mech designs with liquid so the Banshees could operate them while soaking in water.

The wind lifted Beatrice's hair, and she gently smoothed it back with one hand. To be honest, she had