Underground is the basement of FolkUp's publishing house. Upstairs, in "The Clew", stand the books: verified, with indexes and apparatus. Here we store what didn't fit between the covers — longform pieces on the margins of the series, close readings of lives and crafts, stories that started as footnotes and refused to stay that way.

Here we publish cycles of articles — companions to the books. They can be read without the books: each text lives on its own. But if after a longform piece your hand reaches for a book — then it all worked.

The rules are the same as across the ecosystem. Texts are free: CC BY-SA 4.0 license — read, copy, republish; cite the source and share on the same terms. Facts are verified before publication; where a source contradicts a beautiful legend, the source wins. The author writes under a pseudonym: Comandante FolkUp. The face is hidden, the voice is not.

Why "underground"? Because here we can do what a book won't allow: turn aside, dwell on a particular, give a subject more room than composition tolerates. This isn't a warehouse of rejects behind the store. It's the workshop beside it.