The Midnight Auction: A leash you cannot pull is just a very dangerous man. (The Midnight Auction Series Book 1)

In the cities of the Binding, magic has a market — and the Midnight Auction trades the one currency no one can earn back: a person’s true name. Speak it, and you own them, body and will, for as long as you live.
Lira Vess walks into the Auction to sell the last bottled memory of her dead mother and pay down a debt that has already swallowed her future. Instead she overhears three buyers laughing over the man whose name goes up next — a mercenary they mean to spend slowly, for sport — and the part of her that has spent a lifetime swallowing exactly this refuses to walk past it. She burns her whole account to the wax and buys his name first.
Now she owns Nox Severin: the most dangerous man in any room, folded down to a single word in her mouth. Sold into the chair by the one friend he trusted, he is waiting — coldly, certainly — for his new owner to finally use the leash.
She won’t. Not to save the shop, not to save herself, not even dying with a blade at her skull.
But the bond between them is changing — running both ways, then backward — and the people who built the market have begun to notice that a stained-handed healer with a gift they priced at nothing may be the one thing in the world that can unmake every leash they own.
He’s bound. She won’t pull the thread. And he is already, quietly, choosing her.
Book One of a slow-burn romantasy — fated bonds, a morally grey hero, found family, and the question that won’t let go: if you hold someone’s name, can what grows between you ever be wholly your own?