Holly Watt Books in Order
Browse Holly Watt books in order, with quick summaries, Casey Benedict series background, reading order help, and a simple guide to where to start.
Last updated: July 12, 2026
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Holly Watt books in publication order
3 books
To The Lions
by Holly Watt
2019
Reporter Casey Benedict overhears a clue in a London nightclub and starts probing the apparent suicide of a wealthy young man. The trail leads from London to St. Tropez and Libya, and toward a conspiracy far bigger than she expected.
The Dead Line
by Holly Watt
2020
When a desperate message is found hidden in clothes made for the British high street, Casey Benedict and her team chase the story from London to Bangladesh. What begins as a lead on missing girls grows into a devastating investigation with global reach.
The Hunt and the Kill
by Holly Watt
2021
A routine hospital interview draws Casey Benedict into the secretive world of antibiotic research and a possible wonder drug. Following leads from the Maldives to Zimbabwe, she uncovers a cover-up that could cost millions of lives, and people close to her.
Where to start with Holly Watt
If you want the full Casey Benedict arc: To The Lions → The Dead Line → The Hunt and the Kill
If you like dark global conspiracies: To The Lions → The Dead Line
If you want the strongest mix of thriller and medical suspense: The Hunt and the Kill
If you want the clearest feel for Watt's newsroom world: To The Lions → The Dead Line
Holly Watt sub-series and character series
Casey Benedict books in order
Explore this seriesAuthor bio
Holly Watt came to fiction after years of working as an investigative journalist, and that background is all over her books. Her thrillers move fast, but they also care about how stories are found, who gets ignored, and what it costs to keep pushing when powerful people want silence.
Writing, though, started much earlier. Watt has said it was her first love, and that as a child she spent years making up stories and adventures. She later studied English Literature at Trinity College, Cambridge, and began her journalism career at the Sunday Times in 2004.
From there she moved to the Daily Telegraph, where she became Whitehall Editor and helped run the investigations team. Later she joined the Guardian's investigations team. Along the way she worked on major stories including MPs' Expenses and the Panama Papers, and in 2008 she was the Laurence Stern Fellow at the Washington Post.
Her reporting took her well beyond Westminster. She has written about the refugee crisis, reported from Afghanistan, Bangladesh, Jordan, Lebanon, and Libya, and described a job where an ordinary morning could turn into a flight somewhere far tougher by the end of the day. That experience, the travel, the danger, the pressure, feeds directly into the reach and realism of her fiction.
The move into novels was less a break than a change of form. Watt has talked about loving the way journalism opens doors into other lives and places, and her fiction keeps that curiosity. The books ask readers to race through the plot, but they also keep an eye on the systems behind the headlines, the money, the secrecy, and the people who get crushed.
It shows.
Her debut novel, To The Lions, introduced Casey Benedict, a driven reporter whose search for the truth begins with an overheard conversation and widens into a brutal international conspiracy. The book won the Crime Writers' Association Ian Fleming Steel Dagger, and it set the pattern readers now expect from Watt: sharp newsroom detail, global settings, moral anger, and a heroine who keeps going long after common sense would suggest stopping.
Watt followed it with The Dead Line, which sends Casey after a message hidden in high-street clothing, and The Hunt and the Kill, where a hospital interview opens into a story about antibiotic resistance and a possible wonder drug. Readers who enjoy these books tend to like the mix of pace and substance. They are thrillers with chases, risk, and pressure, but they also care about labor, health, power, and the price of looking away.
These days, Watt lives in Devon with her family and writes fiction full time.
The scenery may be quieter than a foreign assignment, but the stories are not.
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