There are 2 books in the The Lunar Gothic Trilogy series. The newest book is Cathedral of the Drowned which came out in 2025.

1
Crypt of the Moon Spider

Book cover of Crypt of the Moon Spider
A young woman, committed to an asylum, undergoes a bizarre treatment that unlocks a vast well of power in this cosmic horror novella, perfect for fans of T. Kingfisher.

Veronica Brinkley has been committed to The Barrowfield Home, run by Dr. Cull, to treat her depression. The institution is built…
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2
Cathedral of the Drowned

Book cover of Cathedral of the Drowned

The sequel to Crypt of the Moon Spider, Cathedral of the Drowned is a dripping, squirming, scuttling tale of altered bodies and minds.

There are two halves of Charlie Duchamp. One is a brain in a jar, stranded on Jupiter's jungle moon, Io, who just wants to go home. The…