London, 1702. When her husband is lost at sea, Mary Burton Gulliver, midwife and herbalist, is forced to rebuild her life without him. But three years later when Lemuel Gulliver is brought home, fevered and communicating only in riddles, her ordered world is turned upside down. In a climate of desperate poverty and violence, Mary is caught in a crossfire of suspicion and fear driven by her husband’s outlandish claims, and it is up to her to navigate a passage to safety for herself and her daughter, and the vulnerable women in her care. When a fellow sailor, a dangerous man with nothing to lose, appears to hold sway over her husband, Mary’s world descends deeper into chaos, and she must set out on her own journey to discover the truth of Gulliver’s travels.