Aerule Ceruleus

Aerule Ceruleus was an astrocorsair and a brigand on the celestial frontier in the second century AHE, and Robert's key character in Frontier stories, part of the Starlight Cycle. Aerule was originally a legitimate military spaceship captain, but he went rogue, stole a ship and started operating as a privateer under questionable commissions of war and a brigand on lawless frontier planets. He ran into Cathal Sior, Aurora and Isan Segba in 84 or 175 AHE and formed a travelling band with them.

Robert described Aerule as "mostly human, closest to Evon", though "more clever than sciency". Kerry intepreted this as Aerule being a denizen of the Jastrax Empire.