The Fallen Witch - Emma Noyes

Amare Bellamy never meant to get married. She had a simple plan: rescue the Captain, rendezvous with the crew, and escape the Sunken City. But when her father bumps up the wedding without notice, she has no choice but to comply... that is, until Lukas shows up. Lukas presents Amare with an ultimatum: break into Skullhaven and collect the ring that could raise the Fallen Witch, or watch her friends die. She agrees, under the contingency that, once their mission is complete, they never speak again. Amare is dead set on sticking to this plan... until she finds out they must pose as a married couple to get inside Skullhaven. Cornered, she agrees to keep up the ruse until they can get the ring and get out. But what happens when their fake marriage starts to feel not so fake at all?