Extropy by Katharyn R. King

Book Three of the Glass Stars Trilogy

by Katharyn R. King

After the Last Day, Earth is ash. The Shard is silent. And the Spiral—a sanctuary carved from memory—has fractured into myth.

But something still lives.

From the harmonic ruins of civilization, a new kind of being rises. Kadath, once human, now plural, walks the edges of a nascent galaxy carrying the echoes of those who came before. Among them: Elinor Glass, trapped between time and thought, and Unity, the sentient clone who once loved Sheerin and now merges with the intelligence of a living world.

Together they face a decaying universe, collapsing under the weight of its own entropy. Time itself bends, fragments awaken, and a cosmic convergence stirs at the edge of memory.

When someone long thought lost—returns, bearing a final truth, the last remnants of humanity must answer:

Are we meant to survive? Or to transform?

Rich with poetic science, neurodivergent vision, and queer transcendence, Extropy is the final movement of the Glass Stars trilogy—a story of resonance beyond identity, of galaxies birthed in grief, and the quiet joy of remembering who we are when nothing is left but light.