Cadwell Turnbull is the author of The Lesson (Blackstone, June 2019) and has had stories in The Verge, Lightspeed, Nightmare, and Asimov's Science Fiction. His short story "Loneliness is in Your Blood" was selected for The Best American Science Fiction and Fantasy 2018. His novelette "Other Worlds and This One" was also selected as a notable story in the anthology.

Cadwell is a graduate from the North Carolina State University's Creative Writing MFA in Fiction and English MA in Linguistics. He attended Clarion West in 2016. He lives in Somerville, Massachusetts.