Two proud kingdoms stand on opposite shores, with only a bloody history between them.   As best friend and lady-in-waiting to the princess, Branwen is guided by two principles: devotion to her homeland and hatred for the raiders who killed her parents. When she unknowingly saves the life of her enemy, he awakens her ancient healing magic and opens her heart. Branwen begins to dream of peace, but the princess she serves is not so easily convinced. Fighting for what's right, even as her powers grow beyond her control, will set Branwen against both her closest confidant and the only man she's ever loved.   Inspired by the star-crossed tale of Tristan and Eseult, this is the story of the legend's true heroine: Branwen. For fans of  Graceling  and The Mists of Avalon , this is the first book of a lush fantasy trilogy about warring countries, family secrets, and forbidden romance. “Fantasy, family secrets, and forbidden romance , oh my!” ― Teen Vogue “Kristina Pérez’s writing is evocative and immersive ... inventive and intriguing.” – Tor.com “The female characters are vivid, powerful, and passionate ... a thrilling roller coaster.” ― Kirkus Reviews “Intense, swoon worthy , and smart.” ―Vic James, author of the Dark Gifts Trilogy “An enchanting story of fierce friendship and dangerous love... Pérez has written a book that whispers the sound of the ocean as you turn each page.” ―Alice Broadway, author of the Ink Trilogy “ Star-crossed love , tested loyalties, and magic that binds and burns― Sweet Black Waves gripped me all the way to the shocking ending.” ―Heidi Heilig, author of The Girl from Everywhere and The Ship Beyond Time Kristina Pérez  is a half-Argentine/half-Norwegian native New Yorker. She has spent the past two decades working as a journalist and academic in Europe and Asia. She is the author of The Myth of Morgan la Fey and holds a PhD in Medieval Literature from the University of Cambridge. Sweet Black Waves  is her debut novel.