Unfortunately, the search results do not provide enough information to accurately answer the question "what we lost in the swamp." The results mainly refer to a book of poems titled "What We Lost in the Swamp" by Grant Chemidlin, which explores themes of self-discovery and introspection. There is also a post on Instagram by the author announcing the release of the book. Without further context, it is impossible to determine what may have been lost in an actual swamp.