Mercedes Castillo is the only coroner in the county, leaving her alone in a morgue most days. One day, she finds she is not the only living thing in her morgue. An extradimensional being has decided to keep a close eye on her and humanity, making it suddenly her sole duty to figure out whether humans have strange hidden neighbors, or an impending threat. Content Warnings: Nonviolent gore eg. vague descriptions of autopsies and corpses Cover art is AI generated