From publisher blurb:
An exciting new adventure for Space 1889: After Empyrean Edition by Darrell Hayhurt!
This adventure takes the Crew out to the far reaches of the asteroid field, and brings them into contact with ancient machines from the times of the Phaetons. On the asteroid Aethra they find technology, treasure, information about a schism between the Phaetons, and signs that the ancients still pose a threat to the solar system.
This is potentially a very dangerous mission. It takes the Crew far out towards the Asteroid Belt where Supply limits can be a significant factor, and there's little hope of outside help. Ship combat is a necessity, and the machines inhabiting Aethra are murderers.
The rewards of surviving a trip to Aethra are numerous. The fragment contains vital information about the Phaetons, several rare device parts, and all the plunder the mechine-men have amassed in the last decade.