Rift Warrior Books in Order

Dane Tanner is sent to the water world Tamil to prevent a colony from destroying itself. Conflict between surface settlers and genetically altered amphibious humans forces him to confront brutal experiments and decide whether the rival populations can coexist.

Colonists on ash-covered Acheron discover a signal from alien ruins just before ancient guardians attack. Dane Tanner must decode the transmission in time to stop the machines, or find a way to use their power against the threat.

Haven-7 erupts into civil war as rebels challenge rulers who control an aging colony ship and its technology. Special forces operative Dane Tanner is sent to restore stability, confronting failing reactors, dangerous mutations, and entrenched inequality.

On the ice world Jarl, Dane Tanner finds a tyrant ruling from an orbital colony ship. His intervention sparks rebellion, forcing him to choose between abandoning vulnerable settlers and infiltrating a stronghold whose ruler already knows his identity.

Dane Tanner arrives on forested Trond to find aliens replacing humans with perfect biological copies. As interstellar war approaches, he must decide whether to destroy the infiltrators or negotiate with refugees fleeing an even greater threat.