Sol Arbiter Books in Order

A corporate executive's murder goes undiscovered for years before Arbiter Tycho Barrett investigates. In a solar system dominated by corporations and technology, the case draws him toward uncomfortable questions about androids, identity, and what makes someone human.

Arbiters Gabriel Anderson and Tycho Barrett enter a darkened tower on Venus after its security androids turn against civilians. Hundreds of thousands of residents are at risk, and the investigators must discover what caused the deadly breach.

Section 9 operative Tycho Barrett must extract a witness from the divided Martian city of Hellas. Framed for a leader's murder, his scattered team crosses hostile territory while corporate forces, bounty hunters, and technological monsters pursue them.

After suffering severe wounds during a mission on Europa, Tycho Barrett receives cybernetic augmentation. He and Section 9 must recover a ship carrying illegal technology that could expose their hidden enemy before the evidence disappears again.

An analyst warns Tycho Barrett of a plot to assassinate the Sol Federation's leader, implicating powerful government officials. Section 9 must prevent the killing and uncover those responsible while considering whether revealing the truth could provoke interplanetary war.

Pursued by Federation agents and assassin Mimics, Tycho Barrett and Andrea Capanelli reunite Section 9 to expose a conspiracy. An operative’s death makes Tycho suspect Andrea, while their augmented perceptions leave the truth increasingly difficult to establish.