Gensenfuro 13

He changed quickly in the damp shack, shivering as the mountain air bit at his skin. He walked to the water's edge, dipping a toe in. It was scalding. This was the true danger of a Gensenfuro; the water came straight from the earth’s magma chambers, often too hot to touch. But Number 13 seemed designed with a natural genius. A channel diverted a small stream of cold river water into one side of the rock pool, creating a swirling vortex of temperature gradients.

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