The Stone Golem — Mary Gentle

Fleeing a surprise treacherous murder attempt, the former King's Freak and would-be painter Ilario has run to Carthage, the city-state under perpetual darkness, in search of freedom. But strange plots are afoot, and a tenuous, complicated alliance with a bookseller-turned-spy will lead Ilario from the shrouded land into tense negotiations and intrigues in seductive, mercurial Venice, from a fraught return to Iberia to a final confrontation with family . . . and destiny.