Clockwork century

Inventor Leviticus Blue creates a machine that accidentally decimates Seattle's banking district and uncovers a vein of Blight Gas that turns everyone who breathes it into the living dead. Sixteen years later Briar, Blue's widow, lives in the poor neighborhood outside the wall that's been built around the uninhabitable city. Life is tough with a ruined reputation, but she and her teenage son Ezekiel are surviving--until Zeke impetuously decides that...

Mercy Lynch is just a frustrated nurse who wants to see her father before he dies. But she'll have to survive both Union intrigue and Confederate opposition if she wants to make it off the Union-operated, Tacoma-bound "Dreadnought" alive.