Every culture has legends of monsters lurking beneath the waves. What if they were all real?



Rosamund Bailey was once hopelessly in love—until betrayal shattered her heart. A year later, she's trying to rebuild her life in London society. But when her ex-fiancé returns with a threat that could ruin everything, she's forced to make a dangerous choice.



Desperate, Rose hatches a reckless plan: find a long-lost treasure hidden beneath the sea. The only man who can help her? A notorious pirate captain with a past he can't outrun—and the same stranger she once shared a one-night stand with.



Now they're trapped together on a ship full of secrets, longing, and sea monsters. Because the treasure she seeks isn't just buried—it's guarded. Water wraiths. An ancient sea dragon. Kelpies that whisper your name. And a pirate with eyes like the storm who might ruin her more than any curse.



If she's going to survive, Rose must decide which is more dangerous: the monsters below the waves . . . or the one she's falling for.



Perfect for fans of forced proximity, pirate x noblewoman, sea monster lore, and slow-burn romantasy with bite.



Contains mature themes.