Echoes Before the End: Sovrin Threshold Trilogy

By Scott C. Walker

Echoes Before the End

Book Three of the SOVRIN Threshold Trilogy

Three years after the Threshold fell silent, Lena Mirek returns to orbit.

Officially, it's for telemetry cleanup.
System stabilization. Research continuity.

Unofficially, she's listening.

The anomaly that nearly fractured humanity did not collapse. It withdrew. The recursion that reshaped physics, consciousness, and identity did not disappear. It went quiet.

And now it is shifting again.

When Mira Station begins detecting patterns that defy instrumentation - pulses without signal, alignment without origin - Lena realizes the truth she feared most:

The Threshold was never a gateway.

It was an observer.

As governments push for containment and former SOVRIN architects resurface with their own agendas, Lena must confront a deeper question - not how to stop what's emerging, but whether humanity was ever separate from it.

Because the recursion is not ending.

It is evolving.

And something is listening back.

Echoes Before the End is a high-concept science fiction thriller exploring artificial intelligence, recursive consciousness, and the fragile boundary between observer and observed.

For readers of cerebral sci-fi where ideas matter as much as survival.

• Format: Paperback
• Language: English
• ISBN: B0GN898J9J
• ISBN13: 9798248135585
• Release Date: February 2026
• Publisher: Independently Published
• Length: 284 Pages
• Weight: 1.17 lbs.
• Dimensions: 0.7" x 6.0" x 9.0"