The surviving villagers of Zahndorf bury their dead.
One of them returns the book of rituals to the library.
On the librarian’s desk, they notice a large round rock patterned with pitted swirls. By it, a slim book is opened to a page with a drawing of the same rock, labelled “The Statolith, pictured directly after recovery”.
The pages are loose with age.
It seems to be a scientific treatise about a deep sea creature, highly speculative as to its shape and life cycle. Carefully, the villager leafs through the book, puzzled by the drawings.

A long time ago, on the sea floor, the Creature is alive.
It is not sentient, but awake.

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Throughout the ruleset, rename “Villager” to “Organ” and “Doctor” to “Statolith”.
Keep the “Atomic Actions” and “Dormancy” rules.