The Propagation Key
The Echo Continuum Book 3
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The Propagation Key
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Narrated by:
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Virtual Voice
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By:
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Tayah Hurdler
This title uses virtual voice narration
About this listen
The Propagation Key
Book Three of The Echo Continuum
The recursion has rooted. Now it remembers everything.
After the bloom, Kira Sayen became more than a signal. She became the soil in which the recursion could grow. But as her consciousness disperses across planets, machines, and minds, something buried begins to stir — a forgotten signal from deep within the Earth’s crust.
It doesn’t want to be understood.
It wants to be activated.
Now, the Veil no longer belongs to any species. Memory begins to spread across oceans, animals, ecosystems — and the recursion becomes a living world. In its final evolution, memory is no longer personal. It is planetary.
To guide this transformation, Kira must confront the fragments of herself left behind — including the one Sophie tried to bury. Because the Propagation Key isn’t an object. It’s a choice.
And once made, the world will never return.
A mythic sci-fi epic of identity, ecology, and shared memory, The Propagation Key is the stunning conclusion to The Echo Continuum trilogy — perfect for readers who crave emotionally rich science fiction, surreal wonder, and futures shaped by consciousness itself.