Books set in the Cobalt City universe are published by both Nathan Crowder and DefCon One Publishing. For your convenience, we’ve collected them all here.
Published by DefCon One Publishing
Kensei Series
Ruby Killingsworth
Femmes Fatale
Other Cobalt City
Published by Nathan Crowder
Cobalt City Christmas
De La Vega Mysteries
The Protectorate Trilogy
Other Cobalt City
