No One Would Do What the Lamberts Have Done by Sophie Hannah Format: eARC
Source: supplied by publisher via Edelweiss
Formats available: hardcover, large print, paperback, ebook, audiobook
Genres: mystery
Pages: 406
Published by Sourcebooks Landmark on January 20, 2026
Purchasing Info: Author's Website, Publisher's Website, Amazon, Barnes & Noble, Kobo, Bookshop.org, Better World Books
Goodreads
The twistiest murder mystery you are ever likely to read?
A story about a family that does the unthinkable in order to save the life of one of its beloved members?
Both? Or something else altogether?
You'll have to read until the very last word in order to find out…
You think it will never happen to the ring of the bell, the policeman on the doorstep. What he says traps you in a nightmare that starts with the words, 'I'm afraid…'
Sally Lambert is also afraid, and desperate enough to consider the unthinkable. Is it really, definitely, impossible to escape from this horror? Maybe not. There's always something you can do, right?
Of course, no one would ever do this particular something – except the Lamberts, who might have to.
No one has ever gone this far. Until Sally decides that the Lamberts will…
My Review:
I don’t normally start by talking about what other reviewers have said, but it’s brilliant and possibly the best short summary I’m going to find OR come up with myself. Because the reviewer who said that this “definitely seems to be a Marmite book” was spot on.
For those readers on my side of the pond who didn’t spend a childhood watching Masterpiece Theater or Doctor Who or reading a lot of British set AND published books, Marmite is a “savoury spread” that is popular in Britain. Vegemite is Marmite’s Aussie cousin. In Britain – and elsewhere – Marmite is shorthand for something that is definitely an acquired taste. Something that people either love or hate but that no one is neutral about unless they just haven’t tried it yet.
I haven’t tried Marmite, but I have read this book. And it’s definitely an acquired taste. It may be loosely based, sorta/kinda and more in theme and presentation than actual story, on The Rose and the Yew Tree, written by Agatha Christie under her Mary Westmacott pen name, but it isn’t really Christie-esq at all.
On the one hand – and do I ever need a lot of hands for this one – the idea at the heart of the story is, well, heartwarming and potentially heartbreaking. Sally Lambert’s beloved dog, the adorable Westie named Champ, has been falsely accused of mauling teenager Tess Gavey. The Gaveys and the Lamberts are bitter enemies, so it is not outside the realms of possibility – or even probability, that Tess is lying. Because she’s a lying liar who lies just like the rest of the Gaveys.
Because of the false accusation, poor Champ is in very real danger of being put down as a ‘dangerous’ animal. Which is where the plot both thickens AND goes off the rails and I start needing all the hands.
On one of my other hands, the Lamberts go on the run, of course taking Champ with them, to protect him from a fate that is literally death which he doesn’t deserve. And on another hand, there’s the entire bonkers plot that results in the death of the entire Gavey family.
In the middle, Champ becomes the darling of social media and a cause célèbre celebrity, the Gaveys are exposed as the scum they are, and seemingly the entire world ends up on Champ’s side.
While surrounding all of that, there’s a framing subplot about a dirt-stained kicked-around manuscript in a box that claims to be the story of how the Gaveys got done in by a bit of mindbending hypnosis conducted by the ghost of the Lamberts’ previous dog.
It’s a lot to take in, a lot to swallow, and a LOT of readers are going to think it’s Marmite. No one seems to be neutral about it, including this reader. This is a case where your reading mileage is guaranteed to vary.
Escape Rating C-: This one is way too bonkers for me. It’s not just that the plot is bonkers, although it is. Still there’s a part of me that thinks I would also go entirely too far to save one of my furbabies from an unjust accusation. That part I actually get, even if Sally Lambert does go WAY over the top.
But the whole story is carried just that bit too far and then some. All of the story’s narrators are unreliable, they’re all leaving out the key facts all the time and some of them are outright impossible. I may have disliked the Gaveys more than I did the Lamberts but I’m not all that fond of the Lamberts either. Except for Champ. Champ is a delight from beginning to end and I AM happy that he’s better than alright at the end.
His people, on yet another hand, may have gotten better than they deserve out of the whole thing. By the time I got to that big twist at the end, I wasn’t sure I cared all that much. Except, again, for Champ.
The framing story about the manuscript in the box has been done oodles of times, and it’s always a bit out there on the believability scale, but this one literally takes the cake. Quite possibly with marmite on it.
All the characters are caricatures in one way or another – if not multiply so – and it was all a bit too much. I picked this up because I’ve been following the author’s Poirot series. I enjoyed the first one, but that series has gotten less and less interesting as it’s gone on and nostalgia will only carry a reader so far. Because the author is so popular, I was hoping that something of her own would help me understand why she’s so popular, but if so, this was the wrong book to start with.
This reads like it’s an experiment in one or multiple ways. It also reminds me a bit of Janice Hallett’s Appeal series in the archness of its tone but not in its execution. I think those are also Marmite books, but it’s a version of Marmite that seems to go down more smoothly for more readers than What the Lamberts Have Done. Including this reader.
The Last Death of the Year (New Hercule Poirot Mysteries, #6) by
Escape Rating C: I think my hand is stuck in the bag of potato chips and I can’t get it out. At least, that’s my explanation for why I keep picking up this series and manage to finish each book, no matter how annoying I find the story and especially the characters.
That the method of ‘warning’ about the murder and the game it was part of reminded me a bit of 
Hercule Poirot's Silent Night (New Hercule Poirot Mysteries, #5) by
Escape Rating B-: Looking back at my reviews of the previous books in this
The Killings at Kingfisher Hill: The New Hercule Poirot Mystery by
The Mystery of Three Quarters (The New Hercule Poirot Mystery #3) by
It all gallops along brilliantly as its going on, but looking back I’m not quite sure it all hangs together. But still, it was a terrific ride while it was happening, and I enjoyed every page of it.
Closed Casket (New Hercule Poirot Mysteries #2) by
And just as with The Monogram Murders, the UK cover of Closed Casket does a much better job of capturing the Art Deco style that I associate with Poirot than the US cover. C’est la vie.