A Letter To The Luminous Deep

A Letter to the Luminous Deep by Cathrall, Sylvie

"A beautiful discovery outside the window of her underwater home prompts the reclusive E. to begin a correspondence with renowned scholar Henerey Clel. The letters they share are filled with passion, at first for their mutual interests, and then, inevitably, for each other. Together, they uncover a mystery from the unknown depths, destined to transform the underwater world they both equally fear and love. But by no mere coincidence, a seaquake destroys E.'s home, and she and Henerey vanish. A year later, E.'s sister Sophy, and Henerey's brother Vyerin, are left to solve the mystery, piecing together the letters, sketches and field notes left behind -- and learn what their siblings' disappearance might mean for life as they know it."--

This is the kind of book that rewards readers who like sisterhood, love, and mystery. It is connected to the The Sunken Archive series, which makes it a good choice for readers who enjoy returning to a familiar story world.

Pick this up if you are drawn to historical and epistolary (letters, diaries, etc.), layered storytelling, and books that give you something to think about after the last page. It is a strong fit for browsing readers who want a clear emotional hook, a satisfying reading experience, and a story with enough depth to recommend to someone else.