The Great When

The fantastical first instalment of the genre-busting Long London series
3.58 goodreads logo

Ratings/reviews counts are updated frequently.

Check link for latest rating.
( 2,742 ratings, 625 reviews)
Brief Description
‘I was in the wrong London. It was horrible. I’d 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... Read More
Format: Paperback / softback
$2499
Pre-order
Releases 6th January 2026 (Approx. Date) Pre-order  "The Great When" now to secure your copy from our first shipment

Found a better price? Request a price match

The Great When

A dark and beguiling tour through the streets of London – fictional and real – by a legend of modern fantasy

A dark and beguiling tour through the streets of London – fictional and real – by a legend of modern fantasy

Book Hero Magic formatted this description to make it easier to read. While it's new and still learning, it may not be perfect - your feedback is welcome! Description

‘I was in the wrong London. It was horrible. I’d 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, Dennis’s life changes forever when he chances upon a novel that shouldn’t 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 book’s presence leaves the doorway open between the two Londons, and The Great When must remain a secret.

Soon Dennis finds himself in the city’s 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 Enríquez

‘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

Book Details

INFORMATION

ISBN: 9781526643247

Publisher: Bloomsbury Publishing PLC

Format: Paperback / softback

Date Published: 01 September 2025

Country: United Kingdom

Imprint: Bloomsbury Publishing PLC

Audience: General / adult

DIMENSIONS

Spine width: 28.0mm

Width: 128.0mm

Height: 196.0mm

Weight: 280g

Pages: 336

About the Author

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.

Also by Alan Moore

View all

More from Sci-Fi & Fantasy

View all

Why buy from us?

Book Hero is not a chain store or big box retailer. We're an independent 100% NZ-owned business on a mission to help more Kiwis rediscover a love of books and reading!

Service & Delivery

Service & Delivery

Our warehouse in Auckland holds over 80,000 books and puzzles in-stock so you're not waiting for your order to arrive from overseas.

Auckland Bookstore

Auckland Bookstore

We're primarily an online store, but for your convenience you can pick up your order for free from our bookstore, which is right next door to our warehouse in Hobsonville.

Our Gifting Service

Our Gifting Service

Books make wonderful thoughtful gifts and we're here to help with gift-wrapping and cards. We can even send your gift directly to your loved one.