Maggie Tokuda-Hall’s 2020 The Mermaid, the Witch, and the Sea is a secondary universe fantasy.
Lady Evelyn Hasegawa’s betrothal to wealthy officer Finn Callum promises financial security to her debt-ridden aristocratic parents. This is an arranged marriage; she’s never met her groom, who lives at a distant imperial outpost in the Floating Islands. Evelyn must take a long sea voyage to join him, a voyage from which she will almost certainly never return.
⸮But this is a sacrifice her parents are willing to make.⸮
Evelyn and a casket full of worldly goods are sent off on the good ship Dove . She’s anxious, of course: a new land, an unknown husband. She would be even more anxious if she knew that Dove is captained by a complete villain and crewed by people who are just as bad.