Drawing on the work of such thinkers as John McPhee, Rachel Carson, Timothy Morton, Frank White, and others, ‘Lost City Hydrothermal Field’ explores philosophies of nature old and new through poetry and science fiction. The anthropocene crisis and the crisis of humanity-as-invasive-species are framed in this text as global, as well as personal, misadventures. A mixed-genre work, readers encounter poems and stories—islands and continents—in a rapid succession of speculative geography, and readers are invited to join its beleaguered, psychozoic populations.