Ambassador 5: Blue Diamond Sky

Ambassador 8: The Alabaster Army

Ambassador 9: Red Crystal Desert

Ambassador 10: Lost Forest Secrets

Ambassador 12: The Unfolding Army

Soldier's Duty

Trader's Honour

Watcher's Web

Ambassador 1: Seeing Red

Ambassador 7: The Last Frontier

Bypass Gemini: Big Sigma Series, Book 1

Ambassador 6: The Enemy Within

Contamination

Heir's Revenge

Ambassador 2: Raising Hell

Ambassador 11: The Forgotten War

Ambassador 1A: The Sahara Conspiracy