The Deca Tapes

DECA PI Amanda infiltrates the Endgame Army to find its founder, Jonathan Tozer, by manipulating the psychotic Murnau.

The protagonist confronts Gregory Taylor, the creator of the Concentrics, who reveals the organization is a self-sustaining "emotional virus" driven by human curiosity rather than a cult.

The narrator investigates the origins of the "Concentrics" by tracking down Michael Duvall, the voice on the tapes, and discovering his company was sold to a shell corporation owned by Gregory Taylor.