An exquisite, lyrical foray into the world of deep-sea divers, the obsession and madness that oceans inspire in us, and the story of submarine inventor Peter Madsen's murder of journalist Kim Wall--a captivating blend of literary prose, science writing, and true crime ' A] thrilling study of an obsession--to sink below the surface, to depths both metaphoric and in fact. Full of wild characters and strange histories, by the end we are convinced, in no small part by the beauty of Frank's] language, that this is one of the most important stories ever told.'--Nick Flynn, author of This Is the Night Our House Will Catch Fire Submersed begins with an investigation into the beguiling subculture of DIY submersible obsessives: men and women--but mostly men--who are so compelled to sink into the deep sea that they become amateur backyard submarine-builders. Should they succeed in fashioning a craft in their garage or driveway and set sail, they do so at great personal risk--as the 2023 fatal