Deep in the mountains of the eastern Empire, in an abandoned mine. A lab, somewhere in its depths. Chiiiiik A magical device for heat exchange, which used the compression and expansion of air, was in operation.
Through it, a culture medium kept cool was repeatedly mixed and separated through numerous pipes. It was a sight that would have made the Ideal Gas Mages of the Magic Tower faint. For this was the perfected form of the 'air conditioning system' they were only just now devising.
Of course, the master of this lab had created this device 183 years ago. He had not announced this discovery to the Magic Tower. There was little point in common folk learning of it.
Furthermore, his lab was so clean it felt obsessive. This was because the lab was periodically cleansed of 'unseen threats' by an extremely refined 'spirit of alcohol'. The lab's master never told anyone what these unseen threats specifically were.
The reason was the same as before. There was no point in common folk knowing.
Plop. Gurgle.
Inside a transparent culture tank, red lumps of flesh clumped together, taking form. Livers, hearts, femurs, nerves, and pieces of brain floated in their own optimal culture solutions. And in the center of the lab, a bathtub.