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The Great When: A Long London Novel

(Paperback)

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Publishing Details

Full Title:

The Great When: A Long London Novel

Contributors:

By (Author) Alan Moore

ISBN:

9781526643247

Publisher:

Bloomsbury Publishing PLC

Imprint:

Bloomsbury Publishing PLC

Publication Date:

6th January 2026

UK Publication Date:

1st September 2025

Country:

United Kingdom

Classifications

Readership:

General

Genre:
Fiction/Non-fiction:

Fiction

Main Subject:
Other Subjects:

Dark fantasy
Conjuring and magic

Dewey:

823.92

Physical Properties

Physical Format:

Paperback

Number of Pages:

336

Dimensions:

Width 128mm, Height 196mm, Spine 28mm

Weight:

280g

Description

I was in the wrong London. It was horrible. Id fallen in by accident, and it was all alive and trying to eat me.

The year 1949, the city London.

Hapless second-hand bookseller Dennis stumbles through a city still shaking off the war. While out procuring inventory, Denniss life changes forever when he chances upon a novel that shouldnt exist; an entirely fictional book from inside another novel.

The book hails from The Great When, a magical shadow-London, where reality blurs with fiction and concepts like Crime, Poetry and Riot are incarnated as mystical beings that stalk the streets. This discovery brings terrible danger, as the books presence leaves the doorway open between the two Londons, and The Great When must remain a secret.

Soon Dennis finds himself in the citys occult underbelly, negotiating sorcerers, gangsters, and murderers some imaginary, some all too real, and all with plans of their own. If Dennis cannot return the book and close the gate, he risks dire repercussions...

Neither London will ever be the same again.

History collides with magic in The Great When. Dark, ridiculous, propulsive, Sunday Times bestseller Alan Moore opens the gates to capital metafictional chaos in the genre-busting first instalment of the Long London series.

'It does what fantasy does best which is show us something beyond our experience this shows us something absolutely new' Susanna Clarke

'A breathless time-travelling classic. Savage, humane, comic, terrifying' Iain Sinclair

'Brilliant and so powerfully imaginative Adam Curtis

'A weird book and a complete joy' Mariana Enrquez

A masterful step from one of our very best, uncompromising storytellers; Moore peels back the layers of London and reveals not only the history we know, but the histories that could have been, and, underneath it all, both the dark and beautiful truths about who we are as a nation. Heather Parry

Reviews

Think Terry Pratchett writing one of Ben Aaronovitchs Rivers of London novels but still unmistakeably Alan. This has massive hit written all over it -- John Higgs
Alan Moore is a visionary artist and a myth maker, and in The Great When he delivers the mystical core of the occult tradition of London: a fantasy novel that features Arthur Machen, Austin Osman Spare, an alternative world that is more real than ours, bookstores, crime and a city traumatized by the war. And he does this with fun, with challenging and beautiful writing, with delight and with the knowledge that there are portals and only a few can access them. This is a weird book and it's a complete joy -- Mariana Enrquez, author of OUR SHARE OF NIGHT
Extraordinary . . . very funny . . . It does what fantasy does best which is show us something beyond our experience -- Susanna Clarke, New York Times bestselling author of Piranesi and Jonathan Strange & Mr Norrell
Like Dickens, Alan Moore has us waiting on the dock, impatient for the next installment of his breathless, time-travelling classic. A preternaturally convincing hallucination from London's fetid past transports us, in some mysterious way, over the abyss of our impoverished post-digital present. Savage, humane, comic, terrifying: and that's just the first page. Now read on -- Iain Sinclair
A profound, gorgeous novel of secret magics and lost souls -- Sunyi Dean, Sunday Times Bestselling author of THE BOOK EATERS
[Moores] lyrical style is a play of poetry and metaphor with a dash of dry humour ... This is a lavishly crafted urban fantasy tale with a caustic and colourful cast, perfect for fans of Susanna Clarke * Library Journal *
What Alan Moore has done is written a powerful, imaginative and beautiful battering ram that blasts through the narrow, static vision of the world we have today. At a time when we are told there is nothing else, that this is it - now and forever - The Great When opens the door to the thrilling idea that there could be all kinds of other worlds and other possibilities. That there could be something else beyond. And he does it funny and beautifully -- Adam Curtis
A masterful step from one of our very best, uncompromising storytellers; Moore peels back the layers of London and reveals not only the history we know, but the histories that could have been, and, underneath it all, both the dark and beautiful truths about who we are as a nation -- Heather Parry
The worldbuilding is extraordinary and the plot is utterly gripping. Readers are sure to be sucked in * Publishers Weekly *
A masterful storyteller [Moore] turns his impressive imagination towards London.. [his] exuberant prose demands we see the magic and beauty that are intertwined with the mundane life of the city * City AM *
Its a romp, full of loving attention to the past * Sunday Times *
The horror and ghastly beauty of this nether-realm are vigorously conveyed by Moore, while his evocation of the post-war capital, all bombsites, deprivation and grubby behaviour, is wonderfully immersive... a heady tumble of language, full of allusions and ripe adjectives * Financial Times *
In The Great When, [Moore's] language is inflamed, a beautiful riot. Onomatopoeia, rhyming slang, wicked anachronisms, slap-happy metaphors: this is the antidote to the Ozempic prose of modern, MFA-incubated novellas * Guardian *
A portent of even greater wonders yet to come * Times Literary Supplement *

Author Bio

Alan Moore is an English writer widely regarded as the best and most influential writer in the history of comics. His seminal works include From Hell and The League of Extraordinary Gentlemen. He is also the author of the bestselling Jerusalem. He was born in Northampton, and has lived there ever since.

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