Phthor

Phthor, the sequel to Chthon, presents a darker, less complex narrative with a unique Y-shaped structure exploring alternate futures. The story follows Arlo and his encounters with mysterious beings, leading to inevitable upheaval for him and his associates. Written by Charles Platt, the series delves into increasingly grim and intense themes with further sequels, Plasm and Soma, expanding on the dark universe introduced in this series.