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The Last Dead Letter

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Bonus short story in the Slough House series included in deluxe tenth anniversary edition of Slow Horses.

28 pages, Paperback

Published January 1, 2019

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About the author

Mick Herron

50 books5,826 followers
Mick Herron was born in Newcastle and has a degree in English from Balliol College, Oxford. He is the author of nine books in the Slough House series as well as a mystery series set in Oxford featuring Sarah Tucker and/or P.I. Zoë Boehm. He now lives in Oxford and works in London.

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5 stars
67 (22%)
4 stars
142 (48%)
3 stars
78 (26%)
2 stars
7 (2%)
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0 (0%)
Displaying 1 - 24 of 24 reviews
Profile Image for Albert.
566 reviews68 followers
October 30, 2025
Much to my delight this short story by Mick Herron brought together two of my favorite characters from the Slough House series, Jackson Lamb and Molly Doran. Molly has invited Jackson to meet her at St Leonard's church, often called the Spook’s Chapel, where the spies are buried. He comes because he owes her. There she tells him a story that she has unearthed but that Jackson already knows because he is part of it. A background story on Jackson is always welcome, but the twist at the end provides both surprise and insight into who Jackson Lamb is.
Profile Image for John Horrigan.
30 reviews
June 10, 2025
Really enjoyed a look back into Lamb when he was behind the wall. I assumed he was part of the story being told, but I figured he was Cross and not the mirror man! Shows that he’s always protected his joes at all costs, even if it led them to hating him and not understanding why he did the things he did. (8.5/10)
This entire review has been hidden because of spoilers.
Profile Image for Mike.
199 reviews2 followers
May 27, 2025
Cold, short, and sharp—this story cuts deep. Two old spies talk while the world moves on without them. The past hangs heavy, like wet clothes in winter. Nothing explodes, but everything matters. It’s quiet, sad, and true—the kind of story that stays with you.
Profile Image for Mark Peacock.
169 reviews6 followers
July 5, 2025
Pretty standard spy story narrated by Molly Doran who's used her wheelchair to block Jackson Lamb in a pew in the Spooks' Chapel at St Leonard's church. Well-told, but not too interesting until the end when Molly gets Lamb to admit to the cold heartedness of his personal rules about "joes". Provides context to some of Lamb's actions in the main Slough House books.
Profile Image for Tanja Elín Sigurgrímsdóttir.
132 reviews2 followers
June 1, 2025
Fyrsta smásagan í seríunni sem sneri að aðalkarakterum seríunnar en ekki hliðarkarakterum. Mjög skemmtilegt concept og ótrúlega gaman að fá sögu sem er í raun prequel frá kalda stríðinu. Væri til í heila bók um spook daga Jackson’s. Hún virðist (enn sem komið er) ekki framfleyta megin söguþræðinum neitt og vera bara stutt skemmtileg saga. Mjög ánægð með þessa.
Profile Image for Randy.
130 reviews2 followers
February 28, 2026
3.75/5

Always good to have Jackson Lamb and Molly in the same room, but this short story felt a tad underwhelming.
Profile Image for Amy Carter.
658 reviews7 followers
October 15, 2025
This was a fun short story! I’m so curious to know more about Lamb’s backstory. I loved the twist at the end, and I loved what it shows about Lamb’s character.
18 reviews
July 1, 2025
Really enjoyed. Love how Mick Herron weaves between the past and current.

He’s quickly become one of my favourite story tellers.
Profile Image for Steve.
Author 6 books2 followers
April 6, 2025
"The Last Dead Letter" is a short story by Mick Herron, included in the anniversary edition of Slow Horses," the first Slough House novel, and despite being a 28-page short, Herron packs this glimpse of Jackson Lamb's past with enough misdirection and mystery to satisfy
Profile Image for Jonathon Wilson.
112 reviews
December 24, 2025
Very nice. This isn’t a John Bachelor novella, but instead focuses on a conversation between Jackson Lamb and Molly Doran that fleshes out the former’s backstory a bit and includes a neat twist at the end. It’s very short, even by the usual standards, but it’s a great addition to the canon.
95 reviews
January 5, 2026
This was a nice short story to give some background about Lamb’s character. But it did feel a little out of place after reading book 1 since the only character in this story we know anything about is Lamb.
Profile Image for Julianne O'Brien.
299 reviews
January 15, 2026
Not a big short story fan, but this one being tied to longer books was good. It appears though it's a little out of place at the end of the 1st book in the series and should instead have been read later.
Profile Image for Simon Cox.
334 reviews1 follower
April 13, 2025
A fascinating snippet of Jackson Lamb back story
Profile Image for Jimgosailing.
1,058 reviews1 follower
May 1, 2025
I enjoy reading these head-to-heads between Jackson and Molly where they, with a mixture of contention and understanding, explore the past, which Herron reveals to us like an onion being peeled
93 reviews1 follower
October 15, 2025
Short story that follows up on Slow Horses his first book of the Slough House novels
172 reviews8 followers
December 3, 2025
Great short read. Really loved the crisp storytelling.
Profile Image for David.
396 reviews
January 9, 2026
This is a brief and entertaining story about spies in Berlin during the Cold War. It gives insight into the past of Jackson Lamb and is a great interlude in between the main Slough House books.
Profile Image for Christian Jebsen.
40 reviews
March 21, 2026
Short and sweet little spy story with a brief glimpse into the past life of Jackson Lamb.
Profile Image for Neisha Dahlstrom.
55 reviews2 followers
March 25, 2026
The archivist Molly always has something to say and is one of the few people Who don’t have to take crap from
Jackson Lamb
577 reviews4 followers
April 10, 2026
A short story that was included with my edition of Slow Horses. Good writing and good background of a major character in the series.
Profile Image for Zach.
209 reviews3 followers
Read
April 22, 2026
Hard to rate since it's so slight. Liked learning more about Lamb. Always nice to see Molly Doran.
235 reviews2 followers
Read
May 15, 2026
A wonderful vignette featuring only Jackson Lamb and Molly Doran discussing on old joe from Berlin at St. Leonard's. A most charming addition to the body of work.
754 reviews
February 22, 2026
Enjoyed!

SPOILER:



























We are meant to think that Dominic Cross is Jackson. It isn’t. Molly is the woman in the photo.
This entire review has been hidden because of spoilers.
Displaying 1 - 24 of 24 reviews