Winter’s Crown by E.L. Johnson

Having just narrowly escaped from the battle of Lincoln, fierce baker Bronwyn Blakenhale is a refugee who joins the camp of the invading Empress Maud. But when an attack on the camp leaves her running for her life, Bronwyn stumbles across dead bodies in the empress’s tent. Not only that, but someone has stolen the empress’s crown.
To prove her innocence, Bronwyn is tasked by the empress to find out what happened and must work with Theobold Durville, a handsome squire known for his flirtatious manner. As if keeping her head alongside such a man weren’t difficult enough, Bronwyn still fancies the squire who served in the false king’s court—and who’s courting the spy-turned-friend she met before the fall of her hometown. Seeing them together breaks her heart, but there’s a killer on the loose, and with a civil war brewing, no one is above suspicion in Empress Maud’s court.