Night of Fire - The Ether Chronicles

Night of fire, night of passionUS Army Upland Ranger Tom Knox always knew going home wouldn't be easy. Three years ago, he skipped town, leaving behind the only woman who ever mattered; now that he's seen the front lines of war, he's ready to do what he must to win her back. Rosa Campos is long past wasting tears on Tom Knox, and now that she's sheriff of Thornville, she has more than enough to do.
Especially when a five-story rock-eating mining machine barrels toward the town she's sworn to protect. Tom's the last person Rosa expects to see riding to her aid on his ether-borne mechanical horse. She may not be ready to forgive, but Rosa can't deny that having him at her side brings back blissful memories .