The Submerged Doorway Sketches consisted of three charcoal drawings discovered among routine restoration studies within the Restoration Studio. Each depicted the same large submerged doorway bearing spiral carvings worn by prolonged water exposure. The viewpoint shifted progressively closer between pages as though the observer approached the structure. No accompanying notes location records or research documentation were found. Medusa has no confirmed memory of producing the sketches despite their resemblance to her own observational work. Shortly after discovery the drawings disappeared without disturbing surrounding materials. Searches of drafting archives storage cabinets disposal containers and furnace compartments failed to locate them. Their existence is currently supported only by journal references and descriptions recorded immediately after their disappearance.