The Thief and the Traitor Bride by V.L. Bovalino — book slip

Nore Gordon is a master of disguise and deception, living a double life as a successful wine merchant and the favored spy of the Lindle crown.

Her latest mission requires her to infiltrate enemy lands to retrieve a powerful relic, but there's a catch: she must work with her estranged husband, Caspian, a notorious thief.

Forced to pose as a happily married couple, Nore and Caspian must navigate their tumultuous past and the dangerous present.

As they delve deeper into their mission, Nore finds herself questioning her feelings for Caspian, despite the betrayal that tore them apart. Can they trust each other enough to survive, or will old wounds prove fatal?

For fans of The Knight and the Moth and The Six Deaths of the Saint.