Hallie Shepherd Published Debut Novel Call Off the Dark
The psychological thriller from the Washington native is already being adapted for a television series by Warner Bros.
Updated on Sept. 22, 2026 in Books
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Author Hallie Shepherd has officially released her debut psychological thriller, Call Off the Dark. The book, published by William Morrow/HarperCollins, is currently slated for a television series adaptation by Warner Bros.
Why it matters
The debut marks a transition for the veteran screenwriter and actress who developed the novel after years of writing screenplays and poetry. Its rapid pickup for television development highlights the industry's continued demand for original thriller content.
The novel features a release date of September 22, 2026. Hallie Shepherd holds a bachelor of arts degree in English from Western Washington University.
The players
Hallie Shepherd
She is an author and former screenwriter, producer, and actress who graduated from Winlock High School in 1998.
Warner Bros
This major entertainment studio is currently developing the novel into a television series.
William Morrow/HarperCollins
This established publishing house is the company behind the release of Call Off the Dark.
The details
Hallie Shepherd transitioned into novel writing after a career spent working as an actress, producer, and screenwriter. Her debut psychological thriller centers on a narrative set in Washington state.
Timeline
Hallie Shepherd graduated from Winlock High School in 1998.
Call Off the Dark was published on September 22, 2026.
An author event is scheduled for 6 p.m. on October 8, 2026.
Industry Dynamics
The story follows the industry trend of rapidly optioning book IP for streaming television as seen with the 2026 psychological thriller novel Call Off the Dark. This project signals how creators are moving between screenwriting and novel publishing to secure multi-platform deals.
Readers can find the new novel at local retailers including shops in Chehalis starting immediately. Fans of the author's work can also attend her upcoming appearance in Olympia next month.
The takeaway
Authors with diverse backgrounds in screenwriting often bring a distinct narrative structure that appeals to streaming producers. Readers interested in the book can look for local signings to engage with the author directly.
What happens next
Hallie Shepherd will host an author event at Browsers Bookshop in Olympia on October 8, 2026, at 6 p.m.
Further reading
For more on upcoming literary releases, visit Books.
More information
Find additional details on the book and upcoming appearances at the Hallie Shepherd author website.
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