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An action-packed fantasy debut chronicling an assassin’s rise to power in a world of immortals.
William Collis Logo
In the secluded paradise of the Valley, life is eternal. Guarded by unbreachable mists and ruled by a reclusive Emperor, this floating world of salt and lilies brims with beauty, ritual, and endless rebirth.
And then prince Soh’shoro discovers his power to kill.
Stolen from the courts, trained in martial and magical arts by enigmatic warrior monks, Soh’shoro is reborn as an assassin, ready to defend against the mythical Outside. But echoes of his lost mother and the ethereal allure of a doomed princess lead him on a path to discover the Valley’s dark secrets…
Now, as war dawns, Soh’shoro must decide: Is paradise worth protecting? Or must Eternity itself be ended once and for all?
Hero Divider
Rich, complex, and tough – this is epic fantasy that will appeal to everyone.
⸺ Lee Child, #1 New York Times best-selling author
Unique and spellbinding…quite possibly the next Game of Thrones!
⸺ Peter Olson, former CEO of Penguin Random House
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Pillar 1
Rich world-building inspired by Heian Japan
Pillar 1
Perfect for fans of She Who Became the Sun and Across the Nightingale Floor
Pillar 1
Action-packed fantasy in the spirit of Shogun
About the author
William Collis
William Collis graduated from Amherst and Harvard. The co-founder of the esports pro team OXG, he previously authored The Book of Esports, whose TED talk gathered over 1.5 million views.
Eternity’s Blade combines his love of action-packed fantasy with a lifelong passion for Japanese history. He has been featured in the Japan Times and various Japan-related TV programs, including as a Tale of Genji scholar.
2025 William Collis. All rights Reserved. Eternity’s Blade, The Book of Esports, The Official Book of Esports™, The Official History of Esports™, The Official Textbook of Esports™, and related marks are the sole property of COLLIS INSIGHTS, LLC.
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