Stark Surrender; the Space Magnate's Bride (The LodeStar Series Book 4)

He climbed from the slums of New Seattle to a life of power and wealth ... but now he must survive those cruel streets again, without even his memories to guide him.
Logan Stark has fallen from his throne at the pinnacle of a financial empire spanning the galaxy. He's lost in the filthy, crime-ridden streets of New Seattle, Earth II. Even worse, he has no memory of who he is, or how he got here. But the worst villain in the history of this city knows exactly who he is ... and Mordacity is after Stark.
Kiri te Nawa swore she'd never return to the place where she lost everything. But to help find the man she can't forget, she must put aside her new life on Frontiera and accompany his brothers back to New Seattle. Will they find Stark before he is claimed by the surging darkness in his mind, or by death?
Book 4, The LodeStar Series, red hot sci fi romance