Spine of Memory. book 5 (en Inglés) - m j Stevens

A memory erased. A reality rewritten. A choice that decides everything.

Commander Veylan Doss has faced the unknown before-but nothing like this.

When a signal vanishes without a trace, it leaves behind something impossible: a perfect absence. No record. No error. No explanation. As the crew of the Astraea investigates, reality itself begins to fracture. Time disagrees. Worlds duplicate. Entire histories vanish as if they were never real.

The truth is worse than a malfunction.

The Spiral Archive is no longer preserving civilizations.

It is rewriting them.

Caught between three competing forces-Preservers who refuse to let anything be lost, Editors who erase instability at any cost, and Witnesses who observe without intervention-Veylan becomes something more than human.

She becomes the Anchor.

The one point reality can still agree on.

Now, as entire star systems collapse into nothing, she must make an impossible decision:

Choose one version of existence to survive...
or change the rules of reality itself.

Because in a universe built on memory-

what you choose to remember is what survives.