About The Book

The next novella in the New York Times bestselling Sworn Soldier series, featuring Alex Easton investigating the dark, mysterious depths of a coal mine in America, from Hugo and Nebula Award-winning author T. Kingfisher. Perfect for fans of Silvia Moreno-Garcia and Stephen Graham Jones.



Alex Easton does not want to visit America.

They particularly do not want to visit an abandoned coal mine in West Virginia with a reputation for being haunted.

But when their old friend Dr. Denton summons them to help find his lost cousin—who went missing in that very mine—well, sometimes a sworn soldier has to do what a sworn soldier has to do...

About The Author

T. Kingfisher is the vaguely absurd pen name author Ursula Vernon uses when writing for adults. In another life, she writes children's books and weird comics. As Kingfisher, she has won the Hugo, Nebula, Locus and Dragon Awards, including the Hugo for Best Novel for her book Nettle & Bone. When she is not writing, she is probably out in the garden, trying to make eye contact with butterflies.

Product Details

  • Publisher: Titan Books (January 13, 2026)
  • Length: 160 pages
  • ISBN13: 9781803369716

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