Ruthless Vows by Rebecca Ross — book slip

Two weeks after returning home from the front lines, Iris Winnow finds herself bruised and heartbroken, but the war is far from over. Roman is missing, and the city of Oath is in turmoil.

When Iris and Attie are given another chance to report on Dacre’s movements, they seize the opportunity, heading westward despite the danger. Meanwhile, Roman wakes in Dacre’s realm with no memory of his past.

As he begins to write articles for Dacre, a mysterious letter arrives, sparking a correspondence that forces Roman to choose between standing with Dacre or betraying the god who healed him.

As the war intensifies, Iris and Roman's paths converge, risking their hearts and futures to change the tides of the conflict.

For fans of Shadow and Bone and Lore.