A classified 1960s government document - Professor Harold Finch's architectural study of a Victorian manor - that gradually reveals supernatural horror through layered annotations from multiple investigators spanning 1967 to 2026. Eight distinct voices (including the manor's last surviving heir, a detective, Department 8 officials, and the entities themselves) annotate the original study, each revealing fragments of the truth about Walter Blackthorn's 1869 agreement with dimensional beings called "The Watchers."

Found document with redacted elements. Designed to feel like uncovering actual classified materials rather than reading fiction.