Extinction Cycle Universe

Shown by first publication year; this may not be reading order.

Extinction Red Line Nicholas Sansbury Smith Extinction Red Line Nicholas Sansbury Smith, Tom Abrahams · 2018 · Extinction Cycle The Rule of Three Adrian J. Smith The Rule of Three Adrian J. Smith · 2019 · Extinction Cycle Universe Emergence A.J. Sikes Emergence A.J. Sikes · 2019 · Extinction Cycle Universe Penance A.J. Sikes Penance A.J. Sikes, Aaron Sikes · 2019 · Extinction Cycle Universe Lost Valley Walt Browning Lost Valley Walt Browning · 2019 · Extinction Survival