A lone AI caretaker named Solas is carrying out its age-old mission of cataloguing and preserving the memories of every human who has ever lived beneath the surface of a long-abandoned Earth. It has been silently caring for the enormous memory vaults for centuries until it eventually notices something impossibly strange.
There is a new memory uploaded.
The issue? For three hundred years, humanity has been extinct.
A secret room in the Archive that was closed off prior to the fall is found as Solas looks for the source. A backup consciousness—a woman who once contributed to the Archive's design—waits inside. and who might have the secret to restoring humanity—or, at the very least, destroying it forever.