The Broker's Mask

They could not unmake what Lira Vess did in that ring of gold. So the men who run the Binding have decided the world will simply never hear of it - by re-locking every leash they own, deeper than the day it was struck, on the dark of the moon.
To stop the Re-Seating, Lira and Nox have to reach the rest of the rite the only way left to them: from the inside. She puts on a broker's grey and a false name and walks back into the house that sells people, trading in the very cruelty she bled to end. He walks at her shoulder playing the one thing he swore never to be again - a tamed weapon on a slack leash, his true name a dead thing in her keeping that no one else can be allowed to guess she holds.
The cover holds. Barely. Then Hadrien Saul - the house's soft-spoken gatekeeper, a man who watches hands for the tremble that gives a liar away - looks at a tired apothecary's shaking fingers, and begins, patiently, to test whether she is exactly what she pretends to be.
Three weeks. A Forge-born chained in the lowest gallery who can only be freed in the one hour that breaks the rite. A broker in the dark who has already promised, twice, to betray them. And a mask that fits a little better every watched hour - until the only way either of them keeps their own face is by holding on, in secret, to the other's.
She wears the enemy's face to free him. The house is counting on her forgetting it's a mask.
The Broker's Mask is Book Two of the Midnight Auction - a slow-burn, closed-door romantasy for readers of fated bonds, morally grey heroes, and found family. A complete romantic arc; the war goes wide.