The Iron Ghost - Old Chrome, #6

A personal favor takes a dark turn. When Miles Kim reluctantly accepts a job to dig into the background of his son's fiancé, Zoe, he never imagined where the case would lead. His investigation plunges him into Seraph's shadow world where forbidden technology from mankind's past is being resurrected. And when Zoe goes missing, he must navigate a world of corrupt enterprises while evading ruthless criminals intent on preventing a renegade marshal from meddling in their affairs. Losing Zoe will cost him his son's trust forever.
Finding her might cost him everything. Get your copy of book six of the Old Chrome series and read Miles Kim's most daunting case yet.