James O'Neill · The Key Series · British Espionage & Cyber Thrillers
Everything needed to cover James O'Neill and The Key Series: author bios, key facts, book covers, interview questions, review copy information and media contact details.
The Key Series follows ex-special forces operator James O'Neill and senior MI5 officer Sarah Sterling through stolen GCHQ data, Red Team exercises, hostile state pressure and quiet attacks on Western infrastructure.
James O'Neill is the author of The Key Series, British espionage and cyber thrillers grounded in tradecraft, military experience and modern intelligence pressure. The series begins with The Lost Key, continues with The Grey Wind and concludes with The Ghost Key.
James O'Neill writes British espionage and cyber thrillers shaped by tradecraft, military experience and the pressure of decisions made far from public view. The Key Series follows ex-special forces operator James O'Neill and senior MI5 officer Sarah Sterling through stolen GCHQ data, hostile state pressure, Red Team exercises and attacks against Western infrastructure. The series begins with The Lost Key, expands into The Grey Wind and concludes with The Ghost Key. The novels are written for readers who like SAS, MI5, GCHQ and cyber thrillers grounded in British intelligence and real-world operational pressure.
Book 1 in The Key Series. A British spy thriller involving a stolen GCHQ drive, SAS, MI5 and cyber risk.
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Book 2 in The Key Series. A cyber espionage thriller about ports, grids, Red Team data and quiet pressure.
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Book 3 and the final book in The Key Series. Releasing end of June 2026.
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Suggested subject line: PRESS ENQUIRY — JAMES O'NEILL