This is the taboo version of His Reward.

A long time ago, I saved my niece’s life. When I return after many years away, I’m stunned that the girl I left behind is all grown up and gorgeous.

She thinks that I’m a good guy. Her hero uncle.
She’s wrong.
I crave her in ways I shouldn’t.

When my forbidden urges get too strong, when someone else tries to steal her from me, there’s no other choice but to take what I want by any means necessary.

Even if she’s unaware.
Even if she resists.

I walked through fire for her.
And it’s time I claimed my reward.

Uncle’s Reward is a spicy uncle/niece taboo romance. It features a morally grey ex-military hero, a sweet heroine in jeopardy, power imbalance, push/pull tension, and ends with a HEA.