Surrender of the Brutal King by Eliza Raine

Nothing has gone to plan.
Not a single thing.
I entered Poseidon’s palace with one intention – steal a legendary ship and sail it to the darkest, most dangerous depths of the ocean, to try to save my sister.
And now I am fighting for my life in a series of deadly trials designed for water gods and sea monsters, not broken, powerless nymphs.
I was prepared for risk. I was prepared for danger.
I was not prepared for Poseidon, or the soul-deep connection I have with him. His tenuous control teeters closer to the edge the more time I spend with him, and gods help me, I’m starting to hope that he falls – and takes me with him.