The Alchemist used the reagent and mutated, after which he started causing chaos in the settlement. He mutated because he didn't read the instructions for use and was a bit hasty.
And the whole trouble is that there you had to not only prepare everything correctly, but also eat it "correctly"...
Ничто не возникает из ничего и ничто не пропадает бесследно.
Если где-то чего-то убудет, то в другом месте добавится.
(Закон сохранения).