The swoonful new spin-off to the Sunday Times bestselling YA romantic fantasy series, Twin Crowns. Perfect for fans of Throne of Glass! ????♀️ Bursting with epic adventure, romance and humour on the high seas. Someone is making waves … Captain Marino Pegasi. Wedded to the sea. Immune to love. Until now … Captain Marino Pegasi is never happier than when he’s exploring the oceans. But when his beloved sister, Celeste, falls gravely ill, he is forced to go on a desperate search for a cure. Little does he know that in his search he will find so much more lying beyond the horizon. Does Marino’s fate truly lie in the hands of a bewitching, mysterious mermaid …? Dive into this gorgeous YA mermaid fantasy and high seas nautical romance! Tropes: Friends to Lovers Mistaken Identity Mermaids Life-saving quests Found Family ????♀️ Your favourite authors and readers LOVE the Twin Crowns series! ‘Twin Crowns cast a spell on me. Don’t miss it!’ – SARAH J MAAS, bestselling author of A Court of Thorns and Roses‘An absolute delight’ – STEPHANIE GARBER, bestselling author of Caraval‘Dripping with romance’ – ROSHANI CHOKSHI, bestselling author of The Gilded Wolves‘Pure indulgence’ – GUARDIAN'Beautifully written, full of emotion, and just the right blend of romance and magic.' ⭐️⭐️⭐️⭐️⭐️'The characters are brought to life and take you with them on their amazing journey!'⭐️⭐️⭐️⭐️⭐️‘My teen loves this series’ ⭐️⭐️⭐️⭐️⭐️????♀️In this romantic fantasy sequel by the Sunday Times bestselling author, Katherine Webber, Marino's journey takes a turn as he encounters mermaids and mermen in his quest. The story, filled with elements of teenage romance and young adult fiction, is a testament to the author's ability to weave a tale that is both captivating and heartwrenching.For fans of Lauren Roberts (Fearful), Sarah J. Maas (A Court of Mist and Fury), Rebecca Yarros (The Things We Leave Unfinished), Faridah Abike-Iyimide (Four Eids and a Funeral), and Beth O'Leary (Swept Away).HarperCollins 2025