Sine Qua Non by Nenia Campbell

“You’ve owned me for years—body and soul. I’ve been a slave to your f*cking ghost.”

Justine Varens knows she has a messed-up life. She spent her whole adolescence hiding it beneath a gilded veneer of perfection, but now the shine is coming off. She’s fallen for the one man she shouldn’t—the man with the power to ruin her completely: her younger stepbrother, Nicholas.
Nicholas Beaucroft would do anything to make Jay his. She’s the only woman who can bring his wild passions to heel and when they’re together, sparks fly. But it’s not enough that his touch makes her heart beat faster. He wants to possess her entirely, to make her burn forever in his world of darkness.
But when old specters rise from their thorny past and history threatens to repeat itself, both Nicholas and Jay have to decide how much of themselves they’re willing to surrender for the sake of their forbidden love . . . and what secrets they might be forced to face when all the shadows fall away.

“What a pretty cage it is, she thought. And what a seductive jailer.”