The principle of moments

Esmie Jikiemi-Pearson


In stock

Asha knows she’s just another voiceless cog in the vast war machine of the Thracin empire, trapped working on the assembly line of weapons destined to ensure humans like her never escape. When she discovers she has a long-lost sister who may still be alive deep in the bowels of the imperial prison, the decision to risk everything is made for her. Obi knows he has to find the cure to the temporal sickness he caught when he split his soul. But when his path tangles with Asha’s they soon realise they are merely pawns in a grand prophecy of fated heroes meeting again and again across space and time to thwart an interdimensional apocalypse. And so they must embark on a quest to the centre of the galaxy, voyaging across the stars in a deadly race against time and tyranny to turn their imminent ending into a new beginning.

ISBN: 9781473234192 Category:


‘My favourite kind of grand space opera
BEN AARONOVITCH, Sunday Times-bestselling author of the Rivers of London series

In Emperor Thracin’s brave new galaxy, humans are not citizens but indentured labourers, working to repay the debt they unwittingly incurred when they settled on Gahraan – a desert planet already owned by the emperor himself. Asha Akindele knows she’s just another voiceless cog working the assembly lines that fuel his vast imperial war machine. Her only rebellion: studying stolen aeronautics manuals in the dead of night. But then a cloaked stranger arrives to deliver an impossible message, and her life changes in an instant.

1812: Obi Amadi is done with time-travelling. Never mind the fact he doesn’t know how to cure himself of the temporal sickness he caught whilst anchoring his soul to Regency London, the one that unmakes him further with every jump. Or if the prince he loves will ever love him back. Or why his father disappeared. He is done. Until he hears about the ghost of a girl in the British Museum. A girl from another time.

When Obi’s path tangles with Asha’s and a prophecy awakens in the cold darkness of space, they must voyage through the stars, racing against time, tyranny, and the legacy of three heroes from an ancient religion who may be awakening, reincarnated in ways beyond comprehension.

A love letter to Black readers of science-fantasy, The Principle of Moments is a symphonic, centuries-spanning adventure – unmissable for fans of the spacefaring found family of Becky Chambers, the alternate London of V. E. Schwab, and the virtuosic climate-craft of N. K. Jemisin.


‘This is a brilliant debut. The world-building is great, and I love how we get a little bit of mythology at the start of each chapter, and slowly start to understand how it relates to the story… I did not want to put it down‘ Sarah, NetGalley reader review

Totally different to what I would usually read – a mixture of Star Wars meets Doctor Who in an epic spacey scifi fantasy saga… Fantastic and captivating‘ Julia, NetGalley reader review

‘SUCH A BRILLIANT DEBUT for Esmie Jikiemi-Pearson! I devoured it’ Caleb, NetGalley reader review

Additional information

Weight 0.76 kg
Dimensions 23.8 × 16.4 × 5 cm










Hardback original


823.92 (edition:23)


General – Trade / Code: K

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