What Stalks the Deep (Sworn Soldier, 3) [Kingfisher, T.]

Author: T. Kingfisher

An instant New York Times, USA Today, and Indie bestseller!

The next installment in the New York Times bestselling Sworn Soldier series, featuring Alex Easton investigating the dark, mysterious depths of a coal mine in America

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...

Publisher: Macmillan Publishers (MPS)
Published: 09/29/2026
Pages: 192
Binding Type: Paperback
ISBN: 9781250463647

About the Author
T. KINGFISHER writes fantasy, horror, and occasional oddities, including Nettle & Bone, Thornhedge, A Sorceress Comes to Call, What Moves the Dead, and A House with Good Bones. Under a pen name, she also writes bestselling children's books. She lives in New Mexico with her husband.