Author of The Lion's Dominion, a seven-book Cold War spy thriller series exploring an alternate history where the British Commonwealth became a third superpower.
William Kerridge is a writer fascinated by the roads not taken—the moments where history could have pivoted in unexpected directions. The Lion's Dominion emerged from a simple question: what if the British Empire hadn't dissolved, but instead transformed into something genuinely new?
Drawing on a lifelong interest in Cold War history, intelligence operations, and the messy realities of decolonization, Kerridge crafts a world that feels both familiar and strange—a third superpower that might have been.
When not writing alternate history thrillers, William enjoys researching obscure Cold War operations, collecting vintage typewriters, and thinking about the Commonwealth that never was.
Seven novels. Three decades. One impossible federation.
The series follows the Commonwealth Security Directorate through the Cold War years (1958–1989), as they defend the Federation from Soviet infiltration, internal conspiracies, and the final throes of empire. Led by Major Alexander Deveraux and Director Catherine Wyndham, Task Force LION operates in the shadows to keep the Federation whole.
"The best alternate history isn't about grand battles or famous figures doing different things. It's about exploring the consequences—how one change ripples outward, creating a world that feels both recognizable and alien."
The Lion's Dominion takes seriously the idea that institutions matter, that choices compound, and that history isn't inevitable. The Commonwealth Federation succeeds not through magic, but through hard choices, compromises, and the constant work of holding a diverse federation together.
This is alternate history as spy thriller—focused on the people in the shadows who keep the machinery running, make the difficult calls, and live with the consequences.
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Explore the Archive →Seven novels spanning three decades of Cold War intrigue in an alternate timeline.
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