Reviews
“Senior detectives are all the rage right now, and Ethel Crestwater is one of the best. Perfect for fans of The Thursday Murder Club series”
Booklist
“A traditional spy thriller, with enough violence and double-crossing to satisfy serious fans of the genre (and just enough levity to win over skeptics). This series continues to impress”
Publishers Weekly
“Fans of elderly sleuths will enjoy this political thriller, as well as Richard Osman’s Thursday Murder Club series and Deanna Rayborn’s Killers of a Certain Age”
First Clue Reviews
“A lively mystery with a droll dynamic duo at its core”
Kirkus Reviews
“Brilliantly intriguing . . . a marvelously complex puzzle . . . Desperate Spies is simply an excellent way to meet Mark de Castrique.”
Crime Fiction Review
“Politics and climate issues are entangled in a complex case that still has moments of humor. Ethel’s adventures will appeal to fans of Richard Osman’s Thursday Murder Club series and Deanna Raybourn’s Killers of a Certain Age”
Library Journal Starred Review of Dangerous Women
“A bewitching political thriller . . . Ethel is perfectly drawn, an endearing heroine who’s clever and capable without being preternaturally competent”
Publishers Weekly Starred Review of Dangerous Women
“An elderly sleuth who looks like Marple but acts like Marlowe . . . An appealing hybrid of cozy mystery and P.I. caper”
Kirkus Reviews on Dangerous Women
“Recommend to fans of Richard Osman and Barbara Ross”
Booklist on Dangerous Women
“Add another wise, experienced senior sleuth to a group that includes Richard Osman's Thursday Murder Club series and even Miss Marple. De Castrique’s quirky characters and offbeat twists will appeal to Osman’s readers”
Library Journal Starred Review of Secret Lives
Editions
Desperate Spies by Mark de Castrique is available in the following formats
| Hardback | 9781448316700 | 4th November 2025 | 144 X 222mm | 240 | $29.99 |
| Hardback | 9781448316700 | 4th November 2025 | 144 X 222mm | 240 | £21.99 |
| Ebook | 9781448316960 | 4th November 2025 | N/A | 240 | £12.99 |
| Ebook | 9781448316960 | 4th November 2025 | N/A | 240 | £12.99 |
| Paperback | 9781448318742 | 19th May 2026 | 129 X 198mm | 240 | $16.99 |
| Paperback | 9781448318742 | 21st May 2026 | 129 X 198mm | 240 | £9.99 |
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