London, 1925. Robert Lestrange is a young writer still reeling from his father's death, untethered and uncertain of his place in the world. When he meets Martia Hare, an incisive woman who works at a literary agency, their conversations spark something more than intellectual connection. But it is the arrival of the enigmatic Jacob Behrens that truly disrupts Robert's stagnant life: a proposition for an expedition to Hyalos, a fabled city swallowed by the Mediterranean Sea thousands of years ago, its temples and treasures still intact beneath the waves. Robert must choose between his safe, solitary existence and a dangerous voyage into the unknown, one that promises both riches and revelation. What begins as a treasure hunt becomes a descent into something deeper, where the secrets of the ancient world mirror Robert's own journey toward love, purpose, and himself. Stacpoole weaves adventure and romance into a luminous tale of discovery, where the sea holds not just the past, but the possibility of a new future.
