Nella is hovering on the edge of spinsterhood when her father sends her across state lines to start her life as a maid. But when she witnesses an assassination on the train to Tennessee, she's certain she'll be the next to die?especially when she's captured by the killer himself.

After a desperate escape attempt leaves her permanently injured, she wakes in an attic, surrounded by a family of trained murderers prepared to end her life.

But Oliver, the one responsible for her abduction, can't dispense of the problem: her.

This surprising ally makes Nella question her plans of escape and her own sanity as she finds herself falling for this freckle-faced man. How is she to stay safe in his blood-tinged world when she can't even leave her desolate prison?

Oliver must learn to protect her from his own family and the rules that make up their intricate network of skilled killers. And it's time for Nella to fight for herself, no matter what?or who?holds her back.

Filled with layers of family betrayal and the burn of unexpected love, The Killer's Flaw is a gripping historical romance that transports readers to the 1850s?a time filled with elegant yet pesky hoop skirts, horse-drawn wagons, and hitmen with pistols at the ready.