Books like The Bloodline Feud

The Bloodline Feud: an omnibus edition of the first two novels in Charles Stross's The Merchant Princes seriesThe six families of the Clan rule the kingdom of Gruinmarkt from behind the scenes. They are a mixture of nobility and criminal conspirators whose power to walk between their world and ours makes them rich in both.Miriam, a hip tech journalist from Boston, discovers her alternate-world relatives with explosive results that shake three worlds. Now, as the prodigal Countess Helge Thorold-Hjorth, she finds herself ensnared in schemes and plots centuries in the making. She is surrounded by unlikely allies, lethal contraband, and—most dangerous of all—her family.To avoid a slippery slope down to an unmarked grave, Miriam must build a power base of her own—with unexpected consequences for three different time lines, including the quasi-Victorian one exploited by the hidden family.