There are 2 books in the The Alchemical Duology series. The newest book is Ocean of Fireflies which came out in 2024.

1
Foxfire in the Snow

Book cover of Foxfire in the Snow
It's a time of change, between magic and alchemy.

Born the heir of a master woodcutter in a queendom defined by guilds and matrilineal inheritance, nonbinary Sorin can't quite seem to find their place. At seventeen, an opportunity to attend an alchemical guild fair and secure an apprenticeship with the…
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2
Ocean of Fireflies

Book cover of Ocean of Fireflies
Welcome to the Industrial Revolution.

Magic has been banished back to the edges of the continent, and Sorin the Master Chemist has one remaining task: restore the guilds of Gasta Fletcha to save the continent's economy, and its soul.

Except the continent has never been more prosperous. Queen Magda is…