The Comet Riders — Anne Spackman

The Comet Riders, book five of the "Seeds of a Fallen Empire" series, tells the story of alien explorers on another world. Long ago, that world was visited by aliens called "the comet riders." The Comet Riders tells of the rise of an intergalactic Federation and of the mechanization of a humanoid alien named Marankeil, who channels his mind and memories into the body of a mechanized unit. He will one day rule the galaxies...